Taking place during the photo shoot in episode 13, Kuroko plans to seduce Mikoto by swapping a suntan lotion Kazari was rubbing on her with one filled with aphrodisiacs. However, her plan backfires when Ruiko takes Mikoto's place, leading her to become aroused instead and lecherously chase after Kazari. Mikoto discovers that Kuroko is the culprit and punishes her, and when the four of them return, they find Mitsuko accidentally used Kuroko's lotion on her pet snake.