Rin Sasaki (佐々木 凜 Sasaki Lin) is the leader of the bullies that tormented Urara Shiraishi. She has Romantic feeling for Yamada.
Rin has shoulder-length purple hair and deep blue eyes. She wear a red headband with small red ribbon and is normally seen in the school uniform. During the event of the Performance Contest, she is briefly seen with "I love Yamada" T-shirt.