Who Designed This Underworld Dungeon? - Chapter 24 - : Fat Brother’s Street

An incredibly athletic older brother, Tenryu Taiga. A programming genius girl, Tenryu Fuyuki. The two siblings separated for eight years ended up living under one roof again after facing the problem – a lack of funds for living expenses.

Fuyuki proposes a way to earn money, a core system deeply involved in people’s daily lives, a game that awards you money as a prize for defeating malicious bugs in cyber world, the 《Aries》structure. Taiga after becoming a warrior in the game relying on his inborn senses, is puzzled by the unfamiliar sensation.

One day Saionji Rui, Fuyuki’s best friend appears and is attacked by a mysterious bug― “I’ll be waiting, my prince.”. Hybrid fantasy battle of cheating siblings begins here!

Born as a lowly goblin, Leav refused to accept fate’s cruelty. Through sheer will and tactical brilliance, he clawed his way up—evolving, battling, and commanding monsters who once saw him as nothing. But power comes at a cost. As war rages and enemies lurk in shadows, Leav faces betrayal, brutal losses, and the cold truth—strength alone won’t forge a kingdom. With ancient magic resurfacing and rival factions closing in, can he rise above mere survival and claim true dominion? In a world where the strong rule and the weak perish, Leav must choose: remain a pawn or become a king.

One night she gets drunk and mistakes the most well-known Mafia boss for a host and intends to sleep with him.

Oh my! What should I do? It’s best to run away!

- Description from Novelupdates

Ethan Graves was a weak, poor, 26-year-old virgin who had never even talked to a girl properly. His only escape was gaming. One night, after finally beating his favorite fantasy game, he went to sleep wishing he could live in that world and become someone powerful — someone feared, respected, and surrounded by beautiful, strong women.When he woke up, his wish had come true.Now trapped inside the very game he cleared, Ethan starts at level 1 with the mysterious Overlord System. In a world ruled by strength, where heroes, monsters, and magic dominate the realms, he must rise from nothing, grow stronger, and slowly build a powerful harem of villainesses, warriors, and queens.This is the story of a former nobody rising to become the ruler of all.WARNING:-this novel has smut.it has harem.it has smut but it is not smut based novel.No NTR