S1·E3 I Won't Be Hurt!

Yuriko, Minako Yamano, and Erika Ayuhara reveal their true colors by embarrassing Tsukushi at the party. She manages to get back at them. The next day, the girls reveal that Rui Hanazawa, whom Tsukushi has a crush on, is in love with Shizuka Todo. Tsukushi becomes depressed.