Overlord: The Multiverse - Chapter 371: Underground Fortress

Chapter 371: Underground Fortress

Words : 868 Author : Black_Bolt

Chapter 363 of "Overlord: The Multiverse" starts here: After that we came back to forest but this time we are in deep inside... Discover what happens next!

After that we came back to forest but this time we are in deep inside the forest. Around us was the body of the people I defeated.

I turned to Demiurge, who was kneeling beside one of the corpses, adjusting his glasses with a thoughtful expression. Solution mirrored his posture, kneeling obediently beside him.

"Demiurge, these corpses should be enough for your experiments, right?" I asked.

Demiurge stood, a small smirk playing at the corners of his lips. "For now, they will suffice, my lord. However, for proper long-term research, I require live subjects as well. Additionally, since you have yet to establish a permanent portal to Nazarick, I would greatly appreciate a secure location to conduct my work." His sharp, calculating gaze turned toward the direction of the village we had saved earlier. "If you wish, I could transform that settlement into our base of operations. It is conveniently located and already populated."

I shook my head. "That won’t be necessary, Demiurge. I have a different location in mind. This very place will become our research facility and main base in this world."

Demiurge’s smirk widened slightly, and he bowed. "Your wisdom knows no bounds, my lord."

Reaching into my inventory, I pulled out an artifact—a small, dark crystal pulsing with arcane energy. It wasn’t grand in appearance, but its power was undeniable. Holding it in my palm, I placed it gently onto the ground and activated it.

"{Underground Fortress.}"

The crystal pulsed once, then suddenly shattered. A deep rumbling filled the air as the very ground beneath us shook. The earth cracked and parted, revealing a massive descending staircase leading into darkness. A hidden entrance.

The transformation took mere moments. Trees surrounding the area subtly shifted, forming a natural cover to conceal the entrance from prying eyes. If one wasn’t looking closely, they would never notice it.

I took the first step forward, followed closely by Demiurge and Solution.

Upon descending, we were greeted by the vast interior of the Underground Fortress.

It wasn’t as grand as Nazarick, but it was large enough for what we needed. The underground complex had three floors.

The entire fortress was naturally cold and damp, but that could easily be remedied. With some modifications, it would soon serve as a proper outpost for Nazarick’s forces.

And on the last floor, I opened the permanent portal to Nazarick.

Demiurge and Solution took a moment to survey their surroundings.

Demiurge adjusted his glasses, his tail flicking slightly behind him. "Magnificent. This will do perfectly, my lord. The secrecy of this location ensures that no one will interfere with my research."

Solution, meanwhile, ran a gloved hand along the stone wall, a pleased smile on her face. "This place has such a delightful atmosphere. Cold, silent, hidden from the world. It suits us so well."

I nodded in satisfaction. "Good. This will be our foothold in this world. You’ll begin fortifying it immediately, Demiurge. I expect defenses set up as soon as possible."

"Of course, my lord," he responded immediately, already thinking about what improvements he could make.

Solution tilted her head toward me. "And what of you, my lord? What shall you do next?"

I grinned. "Solution and I are heading to E-Rantel. We’re going to register as adventurers."

Demiurge raised a curious brow. "Adventurers, my lord?"

I smirked. "What better way to gather information on this world than by traveling openly? Besides, taking down monsters and gaining access to quests will give us valuable insight into the people and their strengths. I also want to test my Elemental Breathing techniques further."

Demiurge chuckled. "A fascinating approach, my lord. I have no doubt you will quickly ascend the ranks of their little adventuring system."

"As you wish, My Lord." Solution said.

I chuckled. "We’ll see soon enough."

Before I could leave, however, I turned to Demiurge, my tone growing more serious.

"One last thing, Demiurge."

He immediately straightened, giving me his full attention. "Yes, my lord?"

"You may only kidnap criminals for your research—those who have committed the worst crimes. Murderers, slavers, war criminals... those kinds of scum. No innocent people. And absolutely no children are to be harmed. Do I make myself clear?"

For a brief second, Demiurge seemed surprised by my words, but his expression quickly returned to normal. He nodded deeply, placing a hand over his chest.

"As you command, my lord. Only those who are beyond redemption shall be used. I will ensure no unnecessary harm is done to the innocent."

"Good." I turned away. "Then I’ll leave this place in your hands. Strengthen it, fortify it, and prepare for what’s to come."

Demiurge bowed low. "It shall be done."

With that, I turned to Solution, a smirk forming. "Come on, let’s go become adventurers."

She giggled, following closely behind as we made our way out of the hidden fortress and back toward the world above.

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📖 Contents

1 Chapter 1: Goddess of Death 2 Chapter 2: Death First time** 3 Chapter 3: Death First Time 1** 4 Chapter 4: Death is into polygamy 5 Chapter 5: Earth 2126 6 Chapter 6: Vampire 7 Chapter 7: Helheim 8 Chapter 8: First Blood 9 Chapter 9: Skeleton Mage 10 Chapter 10: Money Talk 11 Chapter 11: Vampire God 12 Chapter 12: Cainabel 13 Chapter 13: Cainabel 1 14 Chapter 14: Cainabel 2 15 Chapter 15: Death into fashion 16 Chapter 16: Dwarfs 17 Chapter 17: Grimgar 18 Chapter 18: Kind Dragon 19 Chapter 19: Three PKers. 20 Chapter 20: World Enemy 21 Chapter 21: World Enemy 1 22 Chapter 22: Familiar Face 23 Chapter 23: Touch Me 24 Chapter 24: World Championship 25 Chapter 25: World Championship 1 26 Chapter 26: First match 27 Chapter 27: King D-Kingson 28 Chapter 28: King D-Kingson 1 29 Chapter 29: Warrior Takemikazuchi 30 Chapter 30: Warrior Takemikazu 31 Chapter 31: Lord of Wrath 32 Chapter 32: Next Chapter 33 Chapter 33: Clan Members 34 Chapter 34: Momonga 35 Chapter 35: Nine’s Ooal Gown 36 Chapter 36: Daily Life in Clan 37 Chapter 37: Raid Party 38 Chapter 38: Ainz Ooal Gown 39 Chapter 39: Dungeon 40 Chapter 40: Nazarick 41 Chapter 41: Nazarick 1 42 Chapter 42: Shalltear Bloodfallen 43 Chapter 43: Floor Guardians 44 Chapter 44: Union of Eight Guilds 45 Chapter 45: Union of Eight Guilds 1 46 Chapter 46: Union of Eight Guilds 2 47 Chapter 47: Final Day 48 Chapter 48: Final Day 1 49 Chapter 49: Once again with Death** 50 Chapter 50: Horizontal Charleston** 51 Chapter 51: Unknown Disease 52 Chapter 52: System 53 Chapter 53: Coming back to Life 54 Chapter 54: Fearsome as a soggy noodle 55 Chapter 55: Surprise 56 Chapter 56: Dimensional Gap 57 Chapter 57: Travel plan 58 Chapter 58: Orders 59 Chapter 59: Affection meter 60 Chapter 60: First world High School DXD 61 Chapter 61: Highschool dxd 62 Chapter 62: Shopping 63 Chapter 63: Kuoh Academy 64 Chapter 64: Sona Sitri 65 Chapter 65: Boring Class 66 Chapter 66: Friend or Foe 67 Chapter 67: Issey Hyoudou 68 Chapter 68: Issey 69 Chapter 69: Simple Goal 70 Chapter 70: Hot Bath** 71 Chapter 71: Albedo** 72 Chapter 72: Yuri Alpha** 73 Chapter 73: Yuri Alpha 1** 74 Chapter 74: Raynare 75 Chapter 75: Will you die for me 76 Chapter 76: A hole on heart 77 Chapter 77: Becoming Devil 78 Chapter 78: Rias Gremory 79 Chapter 79: Chit chat 80 Chapter 80: Sacred Gear 81 Chapter 81: Confession 82 Chapter 82: A new maid 83 Chapter 83: Chat with death 84 Chapter 84: Welcome to the peerage 85 Chapter 85: Occult Research Club 86 Chapter 86: Occult Research Club 1 87 Chapter 87: Interested in becoming devil 88 Chapter 88: Checkmate 89 Chapter 89: Checkmate 1 90 Chapter 90: Tactical Seducer 91 Chapter 91: Portal to Nazarick 92 Chapter 92: Back to Nazarick 93 Chapter 93: Shalltear 94 Chapter 94: Back to Nazarick 1 95 Chapter 95: Kalawarna 96 Chapter 96: Serafall 97 Chapter 97: NTR bastard 98 Chapter 98: Spanking Serafall 99 Chapter 99: Spanking Master 100 Chapter 100: Asia Argento 101 Chapter 101: Shalltear ** 102 Chapter 102: Shalltear 1 ** 103 Chapter 103: Freed Zelzan 104 Chapter 104: Crazy Guy 105 Chapter 105: Stray Exorcist 106 Chapter 106: Stray Exorcist 1 107 Chapter 107: Morning 108 Chapter 108: Healing Issey 109 Chapter 109: Making a Deal 110 Chapter 110: Investigation 111 Chapter 111: Epitome of scum 112 Chapter 112: First Class Ticket to hell 113 Chapter 113: Shadow Knight 114 Chapter 114: Unexpected Kiss 115 Chapter 115: First Kiss 116 Chapter 116: Issey** 117 Chapter 117: Issey 1** 118 Chapter 118: Harem Member 119 Chapter 119: Chat with Death 120 Chapter 120: Talk with Asia 121 Chapter 121: Getting Angry for Nothing 122 Chapter 122: Asia become Devil 123 Chapter 123: Chat with Rias 124 Chapter 124: Rias in love 125 Chapter 125: Rias in love 1 126 Chapter 126: Demiurge 127 Chapter 127: Pure Soul 128 Chapter 128: Sample 205 129 Chapter 129: Teasing master Akeno 130 Chapter 130: History of Devil 131 Chapter 131: Stray Devil Vaizor 132 Chapter 132: Unexpected Kiss 133 Chapter 133: Foursome** 134 Chapter 134: Foursome 1** 135 Chapter 135: Foursome 2** 136 Chapter 136: Asia thoughts 137 Chapter 137:Teach me too 138 Chapter 138: Teasing Akeno 139 Chapter 139: Poisonous cake 140 Chapter 140: Preparation 141 Chapter 141: Rias’s late night visit 142 Chapter 142: Grayfia 143 Chapter 143: Albedo’s POV 144 Chapter 144: The Grand plan 145 Chapter 145: Misunderstanding 146 Chapter 146: Time to act 147 Chapter 147: Riser Phenex 148 Chapter 148: Know Your place 149 Chapter 149: Rating Game 150 Chapter 150: Rating Game 1 151 Chapter 151: Potential Husband 152 Chapter 152: Issey Pov 153 Chapter 153: Training 154 Chapter 154: After Training 155 Chapter 155: Date with Akeno 156 Chapter 156: Akeno 157 Chapter 157: Phenex Clan 158 Chapter 158: Spoiled Princess 159 Chapter 159: With Death 160 Chapter 160: Potential Yandera 161 Chapter 161: Before the match 162 Chapter 162: Rating Game 163 Chapter 163: Sirzechs Lucifer 164 Chapter 164: Rating Game 1 165 Chapter 165: Rating Game 2 166 Chapter 166: Confession 167 Chapter 167: Rating Game 3 168 Chapter 168: Rating Game 4 169 Chapter 169: Rias vs Riser 170 Chapter 170: Winner 171 Chapter 171: In Love 172 Chapter 172: Koneko 173 Chapter 173: Rias Pov 174 Chapter 182: Decision 175 Chapter 183: Suggestions 176 Chapter 184: Sona** 177 Chapter 185: Sona 1** 178 Chapter 186: Can I became your wife 179 Chapter 187: Mare 180 Chapter 188: Eternal Damnation 181 Chapter 189: Refining 182 Chapter 190: Serafall 183 Chapter 191: Serafall 1 184 Chapter 192: Role-play 185 Chapter 193: Serafall** 186 Chapter 194: Serafall 1** 187 Chapter 195: Pleiades 188 Chapter 196: Akeno’s Visit 189 Chapter 197: Akeno’s Visit 1 190 Chapter 198: Second Date with Akeno 191 Chapter 199: Akeno** 192 Chapter 200: Cuddling 193 Chapter 201: Rias 194 Chapter 202: Rias 1** 195 Chapter 203: Rias 2** 196 Chapter 204: Alliance 197 Chapter 205: Alliance 1 198 Chapter 206: Main Reason 199 Chapter 207: Ajuka Beelzebub 200 Chapter 208: Ajuka Beelzebub 2 201 Chapter 209: Date with Grayfia 202 Chapter 210: Date with Grayfia 2 203 Chapter 211: Date with Grayfia 3 204 Chapter 212: Harem 205 Chapter 213: Grayfia** 206 Chapter 214: Albedo peaking 207 Chapter 215: Threesomes** 208 Chapter 216: Demon Slayer World 209 Chapter 217: Tanjiro’s POV 210 Chapter 218: Puppets 211 Chapter 219: Spider Demon Mother 212 Chapter 220: Demon to Slay 213 Chapter 221: Alexander Seductus Von Mortis 214 Chapter 222: First Vampire Bride 215 Chapter 223: Muzanette Kibutsuji 216 Chapter 224: Falling Family 217 Chapter 225: Pretend Family 218 Chapter 226: Yuki 219 Chapter 227: Giyu Tomioka 220 Chapter 228: Shinobu Kocho 221 Chapter 229: Fighting against Hashira 222 Chapter 230: Hashira 223 Chapter 231: Muzanette 224 Chapter 232: Hashiras 225 Chapter 233: Hashira 1 226 Chapter 234: Trust 227 Chapter 235: Fight 228 Chapter 236: Fight 1 229 Chapter 237: Introduction 230 Chapter 238: Girls Talk 231 Chapter 239: A problem 232 Chapter 240: Yuki 233 Chapter 241: Meeting 234 Chapter 242: You are Sexy 235 Chapter 243: Sexy time 236 Chapter 244: Threesome** 237 Chapter 245: Yuki** 238 Chapter 246: In Nazarick 239 Chapter 247: Tanjiro pov 240 Chapter 248: Future Path 241 Chapter 249: It’s good to be back 242 Chapter 250: Small exchange 243 Chapter 251: Kind Boy 244 Chapter 252: Shinobu Kochō 245 Chapter 253: Fighting demons 246 Chapter 254: A vase 247 Chapter 255: Gyokko 248 Chapter 256: New research material 249 Chapter 257: Akaza 250 Chapter 258: Kagaya 251 Chapter 259: Unexpected Visitor 252 Chapter 260: Serafall ** 253 Chapter 261: Realm of eternal dreams 254 Chapter 262: Date with Death 255 Chapter 263: Enmu 256 Chapter 264: Uninvited Guest 257 Chapter 265: Wake Up 258 Chapter 266: Wake Up 1 259 Chapter 267: Family Reunion 260 Chapter 268: Mitsuri POV 261 Chapter 269: Mitsuri POV 1 262 Chapter 270: Enmu’s Death 263 Chapter 271: Etenal Darkness 264 Chapter 272: Blood Demon Arts 265 Chapter 273: An Offer 266 Chapter 274: Queen of the Night. 267 Chapter 275: A Chat 268 Chapter 276: A meal with Mitsuri 269 Chapter 277: Shalltear POV 270 Chapter 278: Date with Mitsuri 271 Chapter 279: Misunderstanding 272 Chapter 280: What do you think about me? 273 Chapter 281: A Feast 274 Chapter 282: Shalltear pov 275 Chapter 283: Killing Demons 276 Chapter 284: Alive for Now 277 Chapter 285: Muzanette 278 Chapter 286: Continuing the Date 279 Chapter 287: Beautiful Sunset 280 Chapter 288: Mitsuri** 281 Chapter 289: Auditioning 282 Chapter 290: Resurrection 283 Chapter 291: The Price of Resurrection 284 Chapter 292: Returning with Mitsuri 285 Chapter 293: Shinobu’s Enquiry 286 Chapter 294: It is Simple 287 Chapter 295: Blood Contract 288 Chapter 296: Meeting with Hashira 289 Chapter 297: Curing Ubuyashiki illness 290 Chapter 298: Curing Ubuyashiki illness 1 291 Chapter 299: Aoi Kanzaki 292 Chapter 300: Curing Nezuko 293 Chapter 301: Under the Moonlight 294 Chapter 302: Mitsuri** 295 Chapter 303: Nezuko become Human 296 Chapter 304: Akaza Training 297 Chapter 305: Akeno Pov 298 Chapter 306: Akeno Pov 1 299 Chapter 307: Akeno and Shinobu 300 Chapter 308: Akeno and Shinobu 1 301 Chapter 309: Make her fall for you 302 Chapter 310: Date with Akeno 303 Chapter 311: Akeno** 304 Chapter 312: Akeno 1** 305 Chapter 313: Small Talk 306 Chapter 314: Nezuko 307 Chapter 315: Entertainment District 308 Chapter 316: Entertainment District 1 309 Chapter 317: Date with Shalltear 310 Chapter 318: Shalltear** 311 Chapter 319: Shalltear 1** 312 Chapter 320: Daki 313 Chapter 321: Infiltration plan 314 Chapter 322: Different POV 315 Chapter 323: Realization 316 Chapter 324: Old Memories 317 Chapter 325: Talk with Warabihime 318 Chapter 326: Warabihime 319 Chapter 327: Daki** 320 Chapter 328: Muzanette 321 Chapter 329: Choosing the world. 322 Chapter 330: What I am to you? 323 Chapter 331: Going Back 324 Chapter 332: Fulfilling the promise 325 Chapter 333: Muzanette And Daki 326 Chapter 334: Fight with Doma 327 Chapter 335: Fight with Doma 1 328 Chapter 336: Domine Of Unholy Flames 329 Chapter 337: Victory and Aftermath 330 Chapter 338: Shinobu POV 331 Chapter 339: Shinobu** 332 Chapter 340: Informing Mitsuri 333 Chapter 341: Ubuyashiki 334 Chapter 342: It’s a surprise 335 Chapter 343: Aoi Kanzaki 336 Chapter 344: Aoi Kanzaki** 337 Chapter 345: Back to Nazarick 338 Chapter 346: Albedo** 339 Chapter 347: Albedo 1** 340 Chapter 348: Possessive 341 Chapter 349: Back to DXD 342 Chapter 350: Yuri Alpha** 343 Chapter 351: Yuri Alpha 1** 344 Chapter 352: Grayfia** 345 Chapter 353: Serafall** 346 Chapter 354: Serafall POV 347 Chapter 355: Serafall and Sona** 348 Chapter 356: Serafall and Sona 1** 349 Chapter 357: Serafall and Sona 2** 350 Chapter 358: After match 351 Chapter 359: Rias** 352 Chapter 360: Rias 1** 353 Chapter 361: Asia** 354 Chapter 362: Asia 1** 355 Chapter 363: Issey** 356 Chapter 364: Issey 1** 357 Chapter 365: Overlord (New World) 358 Chapter 366: A distress call 359 Chapter 367: Saving Enri 360 Chapter 368: Elemental Breathing 361 Chapter 369: Sunlight scripture 362 Chapter 370: Dominion Authority 363 Chapter 371: Underground Fortress 364 Chapter 372: Beginners’ pit 365 Chapter 373: Testing Me 366 Chapter 374: Long Day 367 Chapter 375: Solution** 368 Chapter 376: Demiurge’s Misunderstanding 369 Chapter 377: On Hunt 370 Chapter 378: First Quest 371 Chapter 379: Talk with Death 372 Chapter 380: Clementine POV 373 Chapter 381: Kidnaping Nfirea 374 Chapter 382: Lets Hunt 375 Chapter 383: Hunting Undead 376 Chapter 384: Hunting Undead 1 377 Chapter 385: Hunting Undead 2 378 Chapter 386: Hunting Undead 3 379 Chapter 387: A deal with Clementine 380 Chapter 388: Solution POV 381 Chapter 389: Solution POV 1 382 Chapter 390: Mission Complete 383 Chapter 391: I am Traveller 384 Chapter 392: Chatting 385 Chapter 393: Renner POV 386 Chapter 394: Narcissist 387 Chapter 395: New Place 388 Chapter 396: Clementine** 389 Chapter 397: Demiurge 390 Chapter 398: Renner 391 Chapter 399: Are you a vampire? 392 Chapter 400: A quest 393 Chapter 401: Crazy Princess 394 Chapter 402: Camp Fire 395 Chapter 403: Gondo Firebeard 396 Chapter 404: Rune Smith 397 Chapter 405: Quagoa attack 398 Chapter 406: Quagoa attack 1 399 Chapter 407: Quagoa attack 2 400 Chapter 408: Feo Berkana 401 Chapter 409: Mad Dwarf 402 Chapter 410: Dwarven Council 403 Chapter 411: Dwarven Council 1 404 Chapter 412: Quagoa 405 Chapter 413: Massacre 406 Chapter 414: Massacre 1 407 Chapter 415: Massacre 2 408 Chapter 416: A Slime Bath 409 Chapter 417: To Capital 410 Chapter 418: Curious Twins 411 Chapter 419: At capital 412 Chapter 420: Meeting Demiurge 413 Chapter 421: Lord of Quagoa 414 Chapter 422: Hunting Dragon 415 Chapter 423: Hunting Dragon 1 416 Chapter 424: I am going back 417 Chapter 425: Do you have lovers

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