Lin Yu, an ordinary delivery man, lives in a world without collapse. Kiana, Mei Raiden, and Bronya are still at Chiba Academy, facing the college entrance examination and preparing to enter St. Freya Academy.

Aponia, a doctor in charge of the psychological counseling room, is also a resident of the Golden Courtyard.

The ordinary delivery man had no connection with these people.

But a special order changed everything.

[Sent to the rooftop to the white-haired, blue-eyed idiot, and told her to eat well, as she always forgets to bring her meal card - Raiden Mei]

Heavy rain in a cloudless sky and biting cold wind in the hot summer.

The dilapidated teaching building, the purple-striped vines inside, the white-haired girl who appeared once and then disappeared, and the numerous corpses on the empty rooftop...

The insulated box that was broken and then restored, the electric car's power disappearing out of thin air, the constantly changing order information, the raincoats and clothes that remained dry even after the heavy rain, the purple rainbow seen during psychological counseling...

The smell of gunpowder from cooking, the half-filled meal card and purple crystal foam from the automatic flushing toilet...

Numerous signs continued to destroy Lin Yu's consciousness.

When he entered the dream and opened his eyes again, he found himself in an unfamiliar place, and all he saw was a white-haired girl being hit by the waves.

Kiana Kaslana...

And he also came into contact with the concept called collapse.

…

"Kiana, I like you, so I can't watch you die in front of me!"

…

The pink crystal flower shattered and reassembled.

…

"Allysia, you are the biggest idiot. Why...can't you just trust me for once?"

…

"Xi'er, you must learn to be strong and protect yourself!"

Reincarnated in another world, Chen Luo was reborn as a slime in Teyvat. "I... can't do anything..." "The Herrscher password is correct!" "?" Accidentally activating the Herrscher Core within him, the Herrscher of Reason's Teyvat Young journey began. Morax: "From a universal perspective, this Eden's Planet is quite interesting." Barbatos: "This energy... should be enough to destroy Sky Island in a single burst." General Raiden: "Wild Wind, submit to me!" Chen Luo: "...but why am I always the one hurt?" The Herrscher's scourge is reappearing on this land. After an initial period of ignorance, the diligent little slime embarked on a journey to collect the Herrscher Cores. ...And when he reached the end of his journey, looking back—he remembered conversations with the gentle deity beneath the sacred cherry tree. He remembered walking alongside the beautiful sea god on the dark seabed. He remembered the twin flowers trapped on opposite sides, invisible to each other. He remembered the star that had nearly vanished from the other side of the sky. "...Now, let's make this imperfect world what I want it to be." (Honkai Impact 3rd x Genshin Impact work, harem-oriented, stable updates!)

My name is Ruan Mei. I resurrected a Grammer genetically modified human from the Locust Plague. It's said that Grammer's genetically modified humans are natural warriors, calm and collected, meticulously following combat orders. But his personality seems a bit lively? Firefly: "Today is my rebirth, and also your doom." Firefly: "I will set the ocean on fire!!!!" Firefly: "Fight! Awesome!!!!"

When the war ended and the cure for oripathy was discovered, Su Xia, a Rhodes Island doctor, retired from Rhodes Island and retired to Lungmen with his girlfriend, Miu Miu. Unexpectedly, his departure sparked a peculiar outburst among the Operators. Lin Yuxia, dressed in a black and purple dress, knocked on his door at night. "Doctor, you don't want the news of you and your wife's seclusion to be exposed, do you?" Shi Huaiya, the heir to the family business, arrived in a luxury car. "Doctor, you don't want to see your wife's eco-park fail, do you?" W produced a thick stack of intimate photos of herself, Theresa, and the Doctor. "Doctor, you don't want your wife to see these photos, do you?" Ghost Shark, dressed in a nun's uniform, gently shook a letter from Skadi. "Doctor, you don't want to see the swarm get out of control, do you?" "Doctor, you actually like it, don't you?" "..." For the sake of his and Miu Miu's peaceful married life, Su Xia found that sometimes he had to compromise with them. And some things only have zero times and countless times...

Ji Ran traveled to the Collapse World. In this world, which was extremely hostile to men... well, humans, Ji Ran felt a little panicked. However, after obtaining the [Dungeon System], he felt that his survival might be somewhat guaranteed. However, there were two options for the dungeon. The first was to clear the dungeon alone. This was too difficult, so he skipped it. Even if one person buffed the player, he still had to skip it! The second option, while the system's buffs would be weakened, would randomly match players with other players. So... Kiana: [Huh? This world actually has so many fun things?] Alicia: [Hehehe, it seems I'm popular elsewhere, too?] Bronya: [Is this a new game? Okay, Bronya accepts the challenge! Watch Bronya clear it with one life!] Raiden Mei: [I'd like to ask, this dungeon allows me to become stronger and control the power of the Herrscher Core by increasing my natural strength, right?] Mei Raiden: [What the hell is this Shenzhou home cooking 300-style dish? (╯‵□′)╯︵┻━┻]

My name is Fu Le, and I'm on Terra. A system has told me to run an internet cafe, and it even has a poster girl. Emperor: I declare L4D2 the most perfect game in the world, especially Black Carnival! Christen: Thanks to the inspiration from Titanfall 2. Starting today, Rhine Life will vigorously pursue Titan research and development... Deep Pool Flyer: Zig—bang! The villain is injured! Tracys: You think you can kill! Kill! Me! ... Beep—an urgent message: The Terran League of Legends All-Terra Finals you've subscribed to, the Rhode Island Esports Club vs. the Integrated Sports Esports Club, is about to begin. Click the link below to jump in and watch immediately. I'm just an internet cafe owner, I don't have their power, so... should I be held responsible for Terra's current state?

In a deserted alley, the two Ritas stared at each other in bewilderment. In the city sky, Wuxiang slashed the heavens with a single blow. In the wind of freedom, how could Wendy and I fly together? Why are St. Freya's dorms constantly being burglarized? Why did the dean collapse unconscious? Why did the white-haired father become a mother? How did heterosexuality become homosexuality? Who will become the king of the Honkai Harem?... Is this a distortion of human nature or a decline of morality? Everyone: Who did this? Hanabi: What? Hanabi knows nothing. Hehehe, I'm just happy.

【Behind the scenes of the protagonist】

Su Yu traveled to the world of Xingtie and obtained the Mihoyo mobile game development system. His game therefore attracted attention from the entire universe.

When the player progresses to the Cocolia boss battle.

"Wildfire" sounded.

"Holy crap! This is too exciting! When the music started, I almost thought our opponent was a Star God!"

When the player progresses to the Immortal Boat.

Xianzhou players: Wherever the game is broadcast, there we will be caught in reality!

When the player progresses to the point where the firefly is pierced.

"Ah—the magic of dragon transformation is activated!"

"Danfeng, lead us in launching a Moon Drinking Rebellion!"

Before the plot

A certain unlucky captain, while playing Honkai Impact 3rd, drew a card incorrectly. In his excitement, he traveled directly to the civilization before Honkai Impact 3rd and was stunned on the spot.

He thought that after becoming a rich second-generation, he could just relax and enjoy himself, until he found out one day that he suddenly possessed a Herrscher Core, and he was dumbfounded on the spot.

I am, the Herrscher of Skyfrost? A Herrscher who doesn't belong to the Honkai God system?

Then, Su Shixiu, who was found by the Fire-Chasing Moth, thought he was about to be killed.

Unexpectedly, he, who had no hostility towards humans, was not only fine, but also became the fourteenth of the future Thirteen Heroes of Chasing Fire, the savior bearing the name of "Apocalypse".

However, Su Shixiu, who carried the will of the savior, was nothing but a regret.

This is a legend of light and shadow, a collision of civilization and destruction, and an opportunity that has been passed down for countless times.

I will do my best to light up the star called "hope" when darkness covers everything, and guide everyone to the arrival of "good"!

Shen Fei arrived on Teyvat and activated the tour guide system. The first guest he bound to was Ying, who was searching for her brother. Aside from Ying, Shen Fei discovered that the only guests he could bind to were demons. So, he used various methods to lure all the gods into his tour group. "Lovely and beautiful Lady Finina, the goddess of water, standing before you is Shen Fei, leader of the Teyvat tour group, and..."