I've Become an Onahole, But I'll Still Climb the Tower

Synopsis

The strongest man in the world dies the way strong men usually do — betrayed by the people closest to him. He wakes up in a body that was never built to fight: soft, pink-haired, and made for other people's use. The Tower doesn't care. It still hands out its trials floor by floor, and it still pays anyone who clears them. So he registers, starts broadcasting the climb to an audience that turns up for all the wrong reasons, and converts their donations into stats. Every floor takes something from him. He climbs anyway.