@TrueGoddessReincarnation
She'll be the next one to get a spin-off if they make another, since they've been running down the official popularity poll (she was right after Lucoa and Shouta).
@Takashi There's a two-part story in Kanna's spin-off where she comes to Japan and they hang out. Saikawa is initially jealous due to how close she acts with Kanna, but they end up becoming friends
@Superioreos: Actually, he's a man (he even lists himself as such on his pixiv account).
Remember that guy who said "and they had lots of sex after that" in the first episode of I Can't Understand What My Husband is Saying 2nd Thread? That's him.