Tensei Gotoki de Nigerareru to Demo, Niisan? (Do You Think You Can Run After Reincarnating, Nii-san?) is a dark psychological isekai manga following a protagonist trying to escape his obsessive, yandere sister who pursues him across reincarnations. The story shifts from a high-stakes escape thriller to a fantasy, with recent chapters like 18.1 continuing the tension of this pursuit. Read a detailed wiki summary at Isekai Wiki .