Grade visits Rika in the pretense of thanking her for helping escort the Biblos delegates to their meeting. A misunderstanding happens when Grade asks Rika if she’s thought about “that thing” they talked about before. Grade, bribes Rika into accepting a teaching position at Senta High.
Meanwhile, her daughter, Megumi rescues Aiya and invites her home for dinner, where they try to convince her to take defensive lessons against the preternatural/mystical/forces of nature/etc.
Also, Miyamuri family text messaging happens. They live two regions apart, it happens.