Nichijou no Dai-ni-jü-yon-wa.Yüko catches Köjirö helping Nano and tells Mio. At first it seems Mio is unfazed but then she starts questioning Yüko what were the two were talking about. But when Mio calls Yüko an idiot after learning nothing happen between them, Yüko takes revenge by lying that Köjirö was kissing Nano much to Mio's shock, after which Mio has a wild fantasy involving Nano and Köjirö. As the Tachibana sisters go home after Kendo practice, both sisters are surprise when Misato learns Köjirö has been attending Kendo classes and Mihoshi finds out that Köjirö is in the Acting club and not the Kendo club...