Zom 100: Bucket List of the Dead, Vol. 6

Akira returns to his family's village to look after his ailing father, only to find it under zombie siege after a former college classmate, Kanta Higurashi, leads an attack on its tunnel defenses. Higurashi delivers a monstrous ultimatum — Akira must become a zombie himself if he wants to save his father — and Akira is transformed into something no longer entirely human.