As a person with poor effort and hatred of fighting, he will get in trouble with a mysterious girl. Because of her, he will get severely injured and will get misunderstood. Because of her, he will also set out on a journey to become a true hero!

There is a Land of the Dead, known as "zombies", they are afraid of the sun, only active in the night, they have the longevity of life, while the power is five times the ordinary people, but they must rely on people taking evolution and maintenance of blood that can be a powerful force, so often zombie massacre of mankind, and mankind to fight against zombies, and began training to fight against zombies, eight Taoist-based, then we all call them ─ ─ zombie hunter.

Is it a strong friendship bound by iron bonds, or is it a complicated relationship like a love triangle? Kou is a delinquent student who is difficult to approach and is always unfriendly. The only two people who are close are Exine and Yupin, who are very popular among their classmates, and the combination of these three constantly causes rumours that even the teachers and students in the school cannot understand, and they become the center of attention wherever they go. However, after Exine confessed to Kou, the relationship between the three of them changes, and a clear distance between them appears...and this is where the sweet and bitter song of youth begins.