Chapter 1 : Isekai-ed to another world with yandere kurumi

Y/N is xx old in Shotoku High School.He is pretty average student everything about him is average.Y/N is pretty obsessed with Tokisaki Kurumi from DAL series!.Short story he died then asked Aqua-sama to bring Tokisaki Kurumi as his partner to fight of demon lord in Konosuba! How will Y/N do? Nonetheless having to party with his most beloved charcter from DAL? Kurumi being yandere is unique to her own is another plus? or minus?. Let this story begins~