An encounter that leads to a pushy parasite?! "Thanks for your help!" "Please leave." The cool, low energy businessman and the super-positive NEET, the worst possible match(?), start living together! "I'll repay you with my body!" One night, Kazuhisa, a company employee who doesn't like getting involved with others, meets Haru, a backpacker lying down on the street. Surprised and annoyed by his decision, Kazuhisa decided to let Haru, who had trouble sleeping, stay with him. Kazuhisa is swayed by the brazenness and energy of Haru, while he tries to take care of him the best he can. To top it all off, Haru tries to repay Kazuhisa with his body...? 「お礼は身体でお返しします！」 他人と深く関わることを面倒と考えていた会社員の和久はある夜、 道で行き倒れていたバックパッカーのハルに出会う。 寝床に困っているハルを気の迷いで一晩泊めたのが運の尽き。 そのままちゃっかり居着き、全力で世話になろうとするハルの図々しさとマイペースさに和久は振り回されまくる。 その上、ハルは恩を身体で返そうとしてきて――!?