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.

This is an adventure guild that transcends dimensions. People from different worlds post and accept commissions here. However, ever since Suou joined the guild, the normal mission commission board has begun to change. And it has gradually been flooded with messages from some people: Shokuhou Misaki posts a specific commission: @Shoufang. Shopping for bags, come quickly. Hayasaka Ai posts a specific commission: @Shoufang. The latest noise-canceling headphones are on the market, let's go buy them together. Tokisaki Kurumi posts a specific commission: @Shoufang. Many clones have been a little restless recently, please come over and help me calm them down. Suou Fang: "..." What on earth do you guys think of the sacred adventure guild? Suou Fang wanted to say that. Until he took a look at the rewards for the mission commissions... but they gave too much!

"If avoiding desire-driven incidents is too difficult, then release those desires and find ways to fulfill them. Of course, mishandling things might lead to getting 'knifed,' schemed against, or thrown into a battlefield of love—but as long as you survive, there's always a chance to turn things around."

"Be meticulous in your conquests, stay true to your character, leverage every advantage around you—and don't panic when faced with the occasional bad ending."

"Winning hearts is troublesome work, but having a reference target makes it much easier."

Xiao Baiye glanced at the scene in his living room: Kasumigaoka Utaha, Sawamura Spencer Eriri, and Kato Megumi all petting the poor, overwhelmed orange cat together.

Maybe his conquest wasn't going so badly after all?

Now, what should he do tonight...?

[Illyasviel completes the sign-in and is rewarded with a 1cm increase in height.] Illya: "???" [Tokisaki Kurumi completes the mission and is rewarded with a video of Tokisaki Kurumi's dark history. Please accept it!] Tokisaki Kurumi: "???" [Fate Testrosa completes the mission and is rewarded with a full set of Takamachi Nanoha's friendship bombardment flow!] Fate: "???" [Shirai Kuroko completes the mission and is rewarded with a lunch box of Misaka Mikoto's love!] Shirai Kuroko: "......!!!" Chu Chen silently watched these system hosts, who were mentally broken by the system he created, and drank his tea very calmly. "Your rewards are really not my fault. I'm only responsible for making and delivering the system. You blame me for being so cruel..."