Sano knows that he is popular, heck, he aims to be the top popular guy. However, a senior named Azuma sweeps the fame as the hot playboy. Sano's one sided rivalry with Azuma made him irritable, more so when he witnessed his crush on top of him. He tried to insult Azuma's seemingly indiscriminate sex life, but finds himself caught in his own trap when he witness Azuma's erotic face. It became a jack-off session. Not only did he lose his dignity, he garnered a spontaneous and laidback guy.
However, their seemingly natural yet impulsive sexual relationships, mostly caused by Azuma teasing Sano and the latter pouncing on him, becomes complicated. Sano becomes aware of his feelings for Azuma and Azuma's unexpected confession was almost cathartic. Besides, even the two are jealous of each other's popularity as it awakens their possesiveness.
Ore no Kirai na Senpai