At the end of summer, during a lunch break, I swapped bodies with a stranger from a parallel universe. My name is Zuo Yu, a senior high school student enjoying the typical high school life of going out five days and returning eleven, living a colorful youth amidst the stark contrast of exam papers. The person I swapped bodies with is Yukino Yukinoshita, a freshman high school student living a typical high school life, her presence absent from the vibrant high school world. Originally from parallel universes, leading parallel lives that would never intersect, our bodies were swapped, bringing us together.

Neon, Chiba City. "Who am I? Where am I?" With a slightly weak voice, Su Luo slowly opened his eyes and found himself in a pink room. The room was decorated like a girl's, with even a large teddy bear on the bed, making him even more confused. Su Luo clearly remembered being a struggling online novelist who died after a week of working himself to the bone updating 20,000 words a day. He couldn't believe he was still alive. Just as he was about to say something, a flood of familiar memories rushed into his mind, like a slideshow. It turned out this world wasn't Su Luo's previous world, but rather the world he had been reborn into. In this world, he was also called Su Luo, but he grew up in an orphanage until he was adopted by Kasugano Sora's parents, where he lived a life of pampered luxury. Of course, why was Su Luo a pampered princess?

Shirayuki Satoru simply stood there. The girls: Thank you for giving me meaning in life! Goto Ichiri cried out in alarm! Faced with the group of girls trying to cheat on her, she dared not be angry or speak out, swallowing all her grievances. Fortunately, a savior, also a pink-haired girl, appeared! Chihaya Aine: Ichiri, don't be afraid! As two-faced emperors, we are invincible! Surrounded by the girls, Shirayuki Satoru smiled slightly, waving his hand to instantly subdue them all! Not a single one escaped! As for the whispers of the bystanders… What!? You dare speak to me like that? Don't you know my father is the Superintendent General of Police? (Involves Bondori, Rock Lady, Lonely Rock, GBC, Day School, and Saekano)

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.