(From the Japanese original) Yokoi and Yoshioka, who live a life without girls at a science boys' school, kiss one day, on the basis of the scientific idea that "the softness of lips is the same for girls and boys." After that day, they devote themself to the quest for sex under the guise of study sessions. Quick-learning Yoshioka escalates steadily——

(From the Chinese version) Yokoi is a genius, Yoshioka is hardworking. Their personalities are different, but for some reason, they start studying together one day. Yokoi is all-around successful academically, but has a more reclusive personality. After meeting the always-familiar Yoshioka, Yokoi starts to integrate into the class, but Yoshioka starts to get jealous. During this time, Yokoi sees Yoshioka's female relative: what thoughts would he have? After overcoming these difficulties that come one after another, can these two get along smoothly and move towards the future?