Otome Game Sekai wa Mob ni Kibishii Sekai desu Trapped in a Dating Sim: The World of Otome Games is Tough for Mobs
"I'll rise up, even if I'm a mob!"
Leon, a former office worker, is reincarnated into an "otome game" of swords and magic. In this largely female-dominated world, the only males who aren't oppressed are the handsome Prince's Entourage - the male adversaries in the game.
However, Leon has a secret weapon to help him amidst the despair and oppression—"knowledge" of the very game he is trapped in.
Putting aside his aspirations to lead a peaceful life in the countryside, he utilizes his knowledge of the game to start a revolution against the girls and his male adversaries!
[Source: ANIPLUS Asia]