The Japanese TV anime began airing in January 2018! Yuzu, who gained confidence in dating Mei after successfully gifting her a couple's ring, finds himself in a "secret relationship". However, during summer vacation, while looking forward to spending time with Mei, Yuzu ends up in remedial classes. There, he meets Shiraho Suzuran, a third-year student with sharp eyes and a unique personality. Yuzu, with his cheerful demeanor, becomes friends with Shiraho-senpai, but soon realizes that Shiraho-senpai, known for her keen observational skills, has a special interest in Mei...?! In an effort to keep their relationship a secret, Yuzu inadvertently starts avoiding Mei. On the night of the summer festival, what will happen with Mei...?!