Short: A Hitman summoned to another world but ultimately can't return. Long: Kurogane Renji, a 28-year-old towering hitman burdened by his past, is transported into another world after a fateful encounter with a goddess who tests both his skill and pride. Cast into a kingdom that mocks his worth, he quickly learns survival means cutting down not only his enemies but even those summoned beside him. In a world where betrayal brews and power decides fate, Renji’s blade knows only one path: forward, with no return.