Jiyouku

Jiyouku stands as the undisputed "ultimate winner" of the isekai world, boasting both invincible combat power and an enormous harem that few could rival. His role as a hero is so coveted in the reincarnation realm that the waiting list stretches a staggering fifty thousand years. As a result, the protagonist known as 'I' could only reincarnate as a single rib bone within Jiyouku's body. Brimming with confidence and an upbeat personality, Jiyouku's outlandish presence serves as a constant source of comedy throughout the story.