After Aoi wins in the street lotery a free trip to Kyoto with Subaru, who was going to join the sixth graders' fieldtrip to Kyoto, this increases her neviousness of being with him, even when she's been having misunderstandings and wild imaginations of Subaru being surrounded by kids. It even doesn't go well for Subaru who had a bad day with underwear the whole day: 1) he and Natsuhi had to return Maho's panties while girls were in the bath, and having a pillow fight on the second occasion, which was succesfull; 2) when he accidentally catches Aoi in erotic underwear, given to her by her friends before the trip, which ruins her mood and makes her "feel to die". On their way home, Subaru manages to brighten Aoi's spirit up by giving a hairpin for being the fifth graders' coach.