Grim reapers strike a balance in the world by upholding that life is built upon someone's death. For this reason, they do not involve themselves with humans any more than necessary. Velius, however, is one who loves and cleaves to his only mortal "son," Ende.

Little Ende knows that Velius is a grim reaper but is unaware of the wicked duties that it entails. Even so, Ende finds solace in his father and will go anywhere as long as they are together. One day at school, Ende is invited by his classmates to join their alliance. However, to become a part of the group, he must share his biggest secret. Soon, Ende's unwavering naivety prompts Velius's forbidden love to do something uncalled for—an act Ende will never notice.

[Written by MAL Rewrite]