Xie Yu transmigrates to the world of Honkai Impact 3rd and gets bound to a dream-instance simulator, which lets him clear instances in his dreams and earn rewards. That's no big deal. After all, what transmigrator doesn't have a golden finger? He even took Elysia as his sworn elder sister. But is there something wrong with this Honkai world? Fu Hua was never injured and has always been at her peak. She's even become the leader of World Serpent. The third-generation Anti-Entropy Sovereign has gone missing, and Cocolia, leader of the Roots, is running in the election for fourth-generation Sovereign. Sirin became the young lady of the Schariac Family and may take over as family head from Cecilia. Oh well, not having a transmigrator's foresight is no big deal. This strange timeline is pretty nice. But when Xie Yu tried using the simulator, he realized that maybe he was the one who didn't fit in.
[Ending Achieved: Kiana's Wedding], [Ending Achieved: The Destiny Live-in Son-in-Law], [Ending Achieved: Raven Buds in Harmony]??? And that wasn't all. His sworn elder sister Elysia was the first to show up with a recording and demand an explanation. "I hear you've secretly taken several other women as your sworn elder sisters?" She pressed play.
"I, Yu, have drifted through life for half a century, only regretting that I never met a worthy elder sister. If Bronya does not turn me away, Yu is willing to take her as his sworn elder sister!"
What is this, Yu Fengxian?!
