17 year old Kaito is a high school student and a part time worker at a grocery store. He views life as boring and stressful and would rather be at home playing video games. That is until he met Sara, a fellow classmate. Slowly life became different.............. negatively.

Government officials are looking for a way to prolong human life. The solution, animal blood. A half human half animal will last longer than an ordinary one.............. Or so they thought.......