Ore No Wakuchin Dake Ga Zombie Shita Sekai Wo Sukueru Chap - 7 Raw Manga - Welovemanga

Climax and ending: In chapter 7, the climax could involve the father zombie leading a final assault, using his unique abilities to destroy the source of the zombie virus while ensuring the son can activate the cure. The ending might be bittersweet, with the father sacrificing himself, leaving the son to take over as the hero.