CO Chuu

Taiki Hisazumi is an unremarkable high school student who quietly idolizes Hanfu, the untouchable beauty of his school. To everyone else, she is a distant goddess, but Taiki’s world shifts entirely when he stumbles upon her closely guarded secret. Far from ordinary, Hanfu is the descendant of a vampire—though not the blood-drinking kind. She belongs to a rare lineage that survives by absorbing carbon dioxide, and without regular replenishment through direct mouth-to-mouth contact, she will perish. Faced with this startling revelation, Taiki makes a resolute decision. Determined to protect the girl he admires, he pledges himself as her personal source of survival, dedicating his life to constantly supplying her with the vital CO2 she needs to live. What follows is an unconventional arrangement that blurs the line between necessity and intimacy. This premise sets the stage for a story that defies traditional genre boundaries. Neither a standard romantic comedy nor a purely provocative one, CO Chuu delivers a uniquely sensual comedic narrative built on an extraordinary bond between two students hiding a bizarre and life-sustaining secret.