That's not...Kunihiro Hajime-san....Who're you?My name is Ryuumonbuchi Touka.I've come to extend to you an invitation.Invitation? Is there something I'm supposed to do here?So hot... even though it's already September...By the way, we'll also be playing mahjong together.This girl is seriously messed up.InvitationBecome my servant!...an invitation.Touka, inadvertently revealing her true intentions.