Teppei Hino, a first-year student at East High, has a life-long nemesis known as "The Demon of the West," whose real name is Onikubo. Onikubo, a second-year student, enjoys challenging East High students and remains undefeated despite numerous attempts to defeat him. Despite his tough exterior, Onikubo has a soft spot for cute things. One day, Hino discovers Onikubo's lost chick coin purse and returns it to him, catching Onikubo's attention. Surprisingly, Onikubo's feelings towards Hino quickly escalates from "I don't hate you" to a kiss. Will the two enemies become something more?
Additionally, this manga includes the one-shots "After School" and "Tayutau Kodoku".
