厳しい女上司が高校生に戻ったら俺にデレデレする理由～両片思いのやり直し高校生生活～

冴えない会社員の下野は上司である美人課長・上條透花に頭が上がらない毎日。 そんなある日、彼は高校時代へタイムリープ。 「中身27歳の今だったら課長を口説き落とせるのでは!?」 これはチャンスと高校の先輩だった憧れの課長へアプローチする下野だったが課長は別人のように下野にデレデレで!? いったい何が起きたんだ!? 両片思いの二人が高校生に戻っていちゃいちゃ オトナの青春やり直しラブコメ Average company worker Shimono spends his days constantly being helped and scolded by his superior and section chief Kamijou Touka. One day, he finds himself having traveled back in time to his high school years. He sees this as a chance to aggressively approach the section chief a second time around, only to find out that very woman had turned into a girl constantly acting lovey-dovey towards him!Turns out that she also time leaped back in time to the same point as Shimono. She was under the impression that she was the only one who traveled back in time, deciding to act as lovey-dovey and close with Shimono, who she actually had feelings for at the time.Through this leap in time begins a romantic story depicting this mutually unrequited love!