Upon inheriting his grandfather's coin laundromat, a middle-aged Minato Akira gives up his former corporate life to run the well-loved coin laundry shop peacefully. One fine day, a high school student by the name of Katsuki Shintaro enters the laundromat and despite the age difference between them, both Shintaro and Akira quickly become good friends. During a conversation Akira surprises Sintaro when he reveals he is gay.

Despite the age gap between them, Akira and Shintaro find themselves getting closer and closer by the day, to a point where Shintaro's fierce pursuit of Akira has the latter overwhelmed. One day, while Shintaro is busy texting Akira from school, he is caught by his classmate, Asuka, who is intrigued by Shintaro's secret love interest. Meanwhile, although Shintaro is persistent about his effort towards Akira, he is ultimately seen holding hands and walking around with a beautiful classmate of his.