Otherworldly Munchkin

Yukito Kirihara, a 16-year-old, fiercely protects his 14-year-old sister, Sana. Their lives are upended when an ogre appears, seeking Sana. Yukito bravely intervenes, sacrificing himself to save her. In the afterlife, a mysterious woman offers him reincarnation, providing a character sheet within a cryptic book. Discovering Sana is also present within the book, Yukito resolves to find her. Armed with only 1 HP, he begins his perilous journey, driven by his love for Sana and the determination to save them both from whatever fate awaits. The series explores themes of sibling love, sacrifice, and the challenges of a new, dangerous world.