Youth Triangle

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.