18+ Akugyaku Hadou no Brave Soul

"Dungeon Brave Soul." It's a game that has won over many men, but then its sequel—with its NTR, depressive, and bad ending developments—has broken the brains of many men. I've been reincarnated as Zenon Baskerville, the game's overwhelmingly despised villain!? To avoid the bad ending, I try to live quietly, but for some reason, the protagonist suddenly glares at me...!?

(Source: Hifumi Shobo, translated)