Lin Ye travels back in time to the start of his second year at Sobu High School, two years before the apocalypse. He decides to change the course of the apocalypse and save the world. As the apocalypse unfolds, the relationships between the girls around him become increasingly complicated. Shiyu: "Tell me, are you still in love with your first love." Yukino: "Tell me the truth, did anything happen with my sister?" Haruno: "Just once, let me be willful for once, after that, you should be with Yukino." Isshiki: "Senior, senior, I have been bought by you now, you have to be responsible!" Kato: "Lin Jun, I seem to know a lot of your secrets, and the pressure is a bit too much. Let me lean on you!"... Lonely Doomsday Helper Kasumigaoka Shiyu Crystal Mutation Helper Yukinoshita Yukino Alien Invasion Helper Yukinoshita Haruno Interstellar Wandering Helper Touma and Setsuna Dark Biochemical Helper Eriri Catastrophic Doomsday Codenames [Resurrection of the Dead] [Honkai Beasts] [Iron Blood Machine Tide] [Deep Blue Sea] [Originium Disaster] - PS: This work involves "Oregairu", "Passerby", "White Album", "Bunny Girl Senpai" and other works.

"Do you know the correct way to use the Mystic Eyes of Death Perception?" "Precise attack lines and points?" "No, no, no~~~" The young man waved his hand and pulled out a rocket launcher from the cello case on his back... This is a story that singles out high schools from various anime and game works, focusing on battles, "romance," battles, dark sides, pseudo-daily life, true apocalypse, and mutual sabotage. These include, but are not limited to, *Private Fujimi Academy*, *Jinshiro High School*, *Private Ashford Academy*, *Koh Academy*, *Mahora Academy*, *Totsuki Academy*, *Tokiwadai Middle School*, *Nagatoshi Academy*, *Prefectural Misaki High School*, *Homura Academy*, *Sayanan High School*, *Toyonosaki Academy*, *Private Paradise High School*, *Crows Zero*, *Toudou Academy*, *Shohoku High School*, *Karakura Daiichi High School*, *Ouran High School Host Club*, and many more. Can you recognize which works these high schools are from?