Yang Ning travels through a parallel universe and uploads a detective anime. The cases in the anime come true. Japan is getting impatient. Who can stand a death per episode? And the update keeps coming! "The host has updated! Check the Japanese news!" "Another murder!" "This elementary school kid is amazing! He kills people wherever he goes!" "I'd call the host the best creator!" "Best anime of the year!" "The most awesome anime ever!" Japan "We're going to sanction the host!" The Toudou Tower is strafed! Japan "We're going to freeze the host's assets!" The Shinkansen derails! Japan "Our satellite is up." The satellite crashes! Japan "My mistake! Please finish it!" Yang Ning "The main plot is a bit stuck, so let's do a hundred episodes of irrelevant plot stuff first."...

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.