Tomoe relives the same day forward to avoid a painful rejection. It is a satire of Groundhog Day tropes, revealing that she would rather loop eternity than face five seconds of embarrassment. Sakuta teaches her that rejection is a necessary part of growth.
Mai’s arc asks: If no one remembers you, do you still exist? This is the hell of social media—being forgotten. Her resolution involves Sakuta publicly declaring his love, thus forcing the universe to observe her again. Seishun Buta Yarou wa Bunny Girl Senpai no Yume...