“Shimazaki, I want to dedicate this summer to Seibu.” An unprecedented youth novel that continues to receive rave reviews from all over the world! At the beginning of summer vacation in her second year of middle school, her childhood friend Naruse started saying something strange again. Corona misfortune, going to the Seibu Otsu store, which is about to close every day, and will be reflected in the broadcast, but… She even challenges the M-1, shaves her head for an experiment, and proudly declares that she will live to be 200 years old. Everyone can’t take their eyes off Naruse, who is pushing his way with all his might today! Hot topic, masterpiece debut.