Ichirou Inuyashiki is a compassionate man who always tries to help others, but his family doesn't appreciate him, and at 58 years old, Ichirou is distraught to learn that he's dying of cancer. In the same city lives Hiro Shishigami, a high-schooler whose personality is quite the opposite. He is cherished by his family, but Hiro is dissatisfied with life and reserves his limited compassion for the very few people he cares about. One night, an alien light hits the earth and both people are killed. They are restored by the extraterrestrials and given awesome new abilities, but how they each use their new powers are vastly different...