[Crossover] Anyone Will Do, Just Take Me In!

Li Xuanye stood at the center of the world and shouted: Anyone, please take me in!! Black Hawk: Oh, our son is so adorable, Xuandong. Xuandong: ... Rihe: If Xuanye is willing, my door is always open! Linari: Yeah, same here! We're fated twins, after all! Heroic Spirit Emiya: As long as you're happy, I'm fine with anything. Sawada Tsunayoshi: ...'Tsu,' please come back... Everyone: No, no, no! You're the only one he has to turn down! Author: As the destined partner I chose for my son, Bailan, what do you think? Bailan: Heh, as long as he's happy. ** Though the blurb is funny, this is a serious story. Theme: You are one of a kind to me. I want to become stronger for you, and I want to become a better person for you.