Nanase Sakura met Doctor Kairi Tendo and fell in love with him. She then studied hard to became a nurse and finally meets Kairi Tendo again. But she realizes that he has a totally different personality than what she imagined.

Hideo Suzuki is a 35-year-old mangaka assistant, whose life seem to be stuck around his exhausting but low-paying job, unfulfilled dreams, strange hallucinations and unsatisfying relationships. He sees himself as a supporting character in his own life, has low self-esteem, resulting in frustration. One day, the world as Hideo knows it is shattered by the presence of a disease that turns people into homicidal maniacs, whose first instinct is to attack and devour the nearest human.