Koi Kamo Shirenai

Yusaku Odoriba, a gay proofreader, impulsively travels to Taketomi Island after a breakup. There, he meets an attractive man and engages in various activities, assuming he is older. They later meet again in Tokyo, where Yusaku discovers the man, Kyouichi Yayoi, is actually a college student studying architecture. Initially trying to distance himself, Yusaku finds that Yayoi is persistent in pursuing him despite the awkward circumstances.