Tasuku is an omega who felt looked down upon after learning his classification so he wanted to prove that it did matter to his achievements. He was doing really well until he fell into hit and almost assaulted so he started hiding his gender. H o wever, he wakes up in bed with his coworker Narushige and learns they are mates and have been dating for 2 weeks.
Tasuku has no recollection of this possible due to his high intake of inhibitors. He feels stuck but the longer he is the more he starts to like Narushige and eventually they start a relationship again.