Sudden Approach in the Dark Room! A Slightly Dangerous Club Activity!? / Burning Culture Festival! The Queen of the School Is Me!!
When Yamada learns of Kosuda's membership in the photography club, and finds out that he is going to develop a few pictures in the dark room, she turns that into a sneaky scheme to "obtain his golden cherry." There, as Yamada accidentally trips the plug to the red dark room lights, Kosuda accidentally touches her bare breasts, but has no idea what he was touching. Disappointed, Yamada runs out of the room after Kosuda finds the switch to the normal room lights, but he catches up with her in his bicycle and offers her a ride home.
Meanwhile, with the school festival approaching, Yamada volunteers to become the ghost in their class' horror booth, because she sees it as a chance to kiss Kosuda in the horror booth. Kosuda never came, so she focuses on the next activity: the search for the School Festival Queen. She narrowly wins to Kyouka Kanejō, a transfer student from America. Kosuda, who was watching the show, thinks her victory will make her more unattainable to him--not knowing that she is waiting for him at the traditional bonfire dance. He makes it in time after sorting out his guts, much to her delight (though she denies her excitement at first), but he has to fall in line. When it was his turn to dance Yamada, the song is over. They still dance, anyway, for quite a while.