The role of grim reapers is to maintain balance in the world, recognizing that life is dependent on death. These beings typically keep their distance from humans, only intervening when necessary. However, Velius is different. He has formed a deep attachment to his only mortal "son," Ende.
Ende is aware that Velius is a grim reaper, but oblivious to the darker side of his father's duties. Regardless, he relies on Velius for comfort and eagerly follows him wherever he goes. One day, Ende is asked to join a group at school, but must reveal his deepest secret to gain acceptance. Velius's love for his son drives him to take action, though it is an act Ende will never realize.