[One Punch Man] the Call of Life

"Living" and "pain" coexist and are the only way for human life. ——Early Warning—— This is a fanfic out of interest. The original heroine has a romantic interest. The hero prostitutes a zombie man. The heroine may not be lovable. Warning for Mary Sue, yandere, and OOC. The story basically happened in the ten years before the original plot started. It is probably all original. The unclear background setting of the original work will have private settings and conjectures. Please forgive me_(:з∠)_ If there are any differences in settings from the updated content of the original work, I will modify it as appropriate_(:з∠)_