An unidentified alien arrives in this world, carrying the memories of a hapless time traveler. On a night with a streaking meteor, three previously unrelated souls merge into one. How does Aozaki Aoko Alter use…

Luo Zhen traveled to the civilization before Honkai Impact 3rd. Being supported by Mobius, he thought he would just live a life of idleness and wait for death, and die in the embrace of the cocoon of the end. Unexpectedly, he obtained a golden finger and got the red A spirit base at the beginning.

As long as you accept commissions from people in different worlds, you can get different rewards.

[Resurrection of the Dead], [Human Emperor Banner], [Avatar World], [Magnetic Field Rotation]...

Xilin: Please revive Cecilia, I will do anything.

Bengtie Laoyang: Are you saying that there's a world out there where Otto is still alive? It's time for him to see the stars shatter.

Mei Raiden: Quack, power, come out to me!

Sunday: You mean, you can help me create a perfect paradise?

Emiya Kiritsugu: Can I really save the world by becoming a magical girl?

Tallulah: Damn it, am I really not as feminine as Black Snake? Please guide me!

Chu Fan, who traveled to the Holy Grail War, knew no magic. But Chu Fan remained unfazed, for he carried with him an FGO system. What? You're going to such great lengths to summon a powerful Heroic Spirit? Ah, I have three Saint Quartz and can summon one instantly, with no limit on the number. What? You're so precious with your Command Seals that you dare not use them carelessly? Ah, my Command Seals refresh once every day at twelve o'clock, and they won't disappear even after all are used. What? You're telling me you're banding together to take on me? Chu Fan snorted coldly, then waved his hand, and dozens of Heroic Spirits appeared around him. "I heard you're trying to outnumber me?" (This story and characters are purely fictitious. Any similarities are purely coincidental. Do not imitate.)

Yuu Tōsaka, the adopted son of the Tōsaka family, later went to the Clock Tower for "advanced training." His original plan was for him to pursue a career as a magus after graduation... until he stumbled upon a game disc. After opening it, he entered the game's world and encountered Tiamat right at the start. [Quest: Fight alongside Tiamat] "Wait, why aren't you asking me to save Humanity?!" Yuu Tōsaka quickly discovered his blind spot, but he ultimately successfully completed the system quest and spent a wonderful time with Tiamat. ...After that, he journeyed through several different game arcs. In Britain, he was King Arthur's childhood sweetheart. During the Fourth Holy Grail War, he found a girl who adored him... her name was Sajo Aika. After finally completing the game, Yuu Tōsaka was about to put the disc away for safekeeping when, one sunny afternoon, the Heroic Spirits he had captured in the past arrived. The Knight King, Morgan the Fairy, Tiamat, the Root Princess... Looking at the unique Heroic Spirits before him, Tōsaka Yuu began to sweat profusely. "The Heroic Spirit I captured in the game... actually became real?!"

Having unified Britain and established the Fairy Kingdom, Shirou returned to Japan in 1993. "Fuyuki, what a peaceful city..." Shirou thought he could live out his remaining years in peace, but then he encountered an unexpectedly familiar figure. "Morgan!! When did you get here?" The blonde girl exclaimed, "Just now some madman mistook me for Joan of Arc, and now... how are you going to confuse me with my sister? I'm King Arthur!" Shirou scoffed, "Laughable. You're King Arthur? Then who am I?"

After traveling to the world of Honkai Impact 3rd, Lin Xi is bound to a "Seele Simulator." By successfully conquering or rewriting the fate of plot characters in various simulations using Seele's persona, the host will receive character-specific talent rewards. However, if the simulation's evaluation is too low, the host will not only be locked out of the relevant scenario, but will also be forcibly bound to some "strange" talents after the simulation ends. As the simulation progresses, one beautiful girl after another falls for Lin Xi's Seele persona. So... Alicia: Seele, when will our wedding be scheduled? Mebius: Let's do something fun, sweet little Seele. Big/Small/Honkai Impact 3rd: Seele! Bronya finally found you! Let's get married! Kiana: Seele is truly gentle and adorable! Lin Xi, while posing as Seele in the simulation to reap the benefits, is completely unaware that she has completely taken on Seele's form. Lin Xi: You're looking for Seele, what does this have to do with me, Lin Xi? Until the object in the simulation, and even the real person in the quantum sea, came to force a marriage...Lin Xi: I'm so excited!

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? (╯‵□′)╯︵┻━┻]

Travel through different worlds, different identities. In InuYasha, transform into Yae Sakura and Kikyo, slaying countless demons. The Moe King, transformed into a student assistant, delivers the world's most adorable blow. With one soul, two bodies, Rosaria, Lilia, and the Vodka Girl strike! In the Collapse world, as Kallen, Ue Sakura Rin, and Green Otto. The God Slayer, Fu Hua, descends to hunt the gods! ... Gemini, Mei, Himeko, Kallen, Rita, Fu Hua, Ban Ya, Yae Sakura, Theresa, Kiana, Seele... Experience the Valkyries of Collapse III and travel through countless worlds!

Sajō Chisei was transported to the Type-Moon universe, becoming the adopted son of the Sajō family and having two younger sisters…Sajō Ayaka and Sajō Ayaka. At sixteen, he awakened an ability: the power to travel to another world. In the present world, he attends the Clock Tower, a struggling magic student whose academic record is on the verge of collapse. But in the other world, he experiences a series of extraordinary lives. During the Tunguska explosion, he adopted a fox and named it 'Koyanskaya'. In Britain, he was Morgan le Fay's adopted son, witnessing the tragedy of sisters turning against each other. In Uruk, he had a loving mother named Tiamat… Finally, one day, followed by the Seven Beasts, Sajō Chisei arrived at the gates of Chaldea and said to the bewildered doctor and others, "Doctor, I've come to help you save humanity!" Mash: What are those behind you?! Sajō Chisei replied sincerely, "They're my Pokémon." "You were supposed to save humanity? Who told you to conquer the Beasts?!"

[Early Teyvat, later Teyvat + Earth] [The Four Shadows will have more and more screen time and become T0 contenders, don't worry] [The issue of not retaliating has been initially fixed, but there may be omissions. You can tag the author to let them know so they can be corrected.] He transmigrated to Teyvat, becoming the younger brother of one of the original Four Shadows, and intended to groom him as his successor. However, Zhao Ziying only felt oppressed here. Because none of his four older sisters were normal. One was always busy with work, loving humanity and offering help, but was beaten by her boss and later tried hard to save the family. Another was possessed and became obsessed with creating strange creatures in her space, destroying them if they weren't suitable. Another was clearly powerful, but pretended to be stupid and slack off all day. Another took advantage of her boss's absence, saying she was going out to work and then never returned. He didn't want to live like this for a second longer. So, when no one was paying attention, he went to Teyvat to find the purple-haired older sister from before. At first, the four of them didn't take it seriously, thinking it was just a child throwing a tantrum and that she would come back after her anger subsided. But when they heard that Zhao Ziying was going to inherit the throne of Narukami, they panicked and rushed to the castle tower. "Stop fooling around, Xiaoying, come home with me. How can a mere mortal ruler be worthy of you?" At that moment, a woman in a white dress and an eye patch approached him, smiling, "Come with me, I can show you the inner workings of the moon." Just as Zhao Ziying was completely bewildered, a pair of slender hands rested on his shoulders, and a gentle yet terrifying voice came from behind him: "Xiaoying, you promised to stay with me this life, right?"