Yuta is puzzled that Nibutani wants to join Rikka's club. He wonders if she could really like him back, but the answer he gets isn't the one he imagined!

Rikka becomes very excited about the presence of a magic user she is supposedly doing unvisible battle with, but it soon becomes apparent that this magic user is an actual person. She is a girl Yuta knows from his middle school days who first infected him with chunibyo. Rikka is both fascinated and terrified of the threat the new girl poses to her and Yuta's love contract, and either wants to be friends with her or be rid of her for all eternity.

While helping Kumin's aunt run a shop by the beach, Rikka realizes that her powers are fading... and she may want them to.