Hoshi Taichi is enjoying his university life. He is popular on campus and full of confidence, but in fact, things were different in high school... One day, at a university social gathering, Taichi meets Tanaka Hanako, the woman who revolutionized his life. What on earth happened between Taichi and Hanako in high school? And what will Taichi do when they meet again after such a long time? A sci-fi slice of life drawn by Itagaki Paru, the creator of "BEASTARS" and "SANDA"!