[Crossover] Falling in Love with Saiki Kusuo

While completing missions in different worlds, Xinchuan unexpectedly meets Kusuo Saiki. From then on, he falls head over heels. Specifically, he shamelessly clings to Kusuo Saiki all day long, desperately trying to get noticed. Today he's a sweetie, tomorrow a little minx, and the day after he can be a national hero who's ridiculously handsome. Before they fall in love: Kusuo Saiki: “I'd rather die than date someone who acts up like that. Dating is nowhere near as good as eating coffee jelly.” After they fall in love: Kusuo Saiki: “I miscalculated.”