On the app called FreeFriends, he met Saki Kawasaki, a woman short of money due to a family change. On the train, he encountered Kotonoha Katsura, a cowardly girl who was bullied at school. He became a model and met Kirino Kousaka, a girl who loved the anime. From that month on, Yuu Kasugano's youth was no longer normal.

If the world lacked someone, it would be different, but it would still function normally. But if a person gave up on doing certain things and thinking certain thoughts, could they still be considered complete? So troublesome—Yi Sheji, a high school student who sighed all day, had spent sixteen years in peace. Although he had no envy for others and no energy at all, he still burned with the so-called passion of youth without realizing it.

Wait! Let me take a moment! I traveled through time and became Hikigaya Hachiman's dad? A thirty-something man!? He just got released from the ICU due to the 996 work schedule? And got fired! My wife is Hikigaya Kazusa? But we're divorced? Or was it amicable?! Divorced and bankrupt, I had to find a manual labor job. The blind date my neighbor set me up with was my college junior, Hiratsuka Shizuka? And then one day, I ran into the beautiful university student Ichinose Honami on the street, who was being beaten? I want a cigarette!!!