As Chisa continues her duties as a teacher while secretly serving as a spy for Kyosuke, Hajime speaks with Kazuo, who warns him against accepting a certain offer from the school. After receiving some advice from Chisa, Chiaki brings in some multiplayer video games to make friends with the rest of the class. Things soon take a turn for the weird when dancer Hiyoko Saionji spikes everyone's food with an aphrodisiac that cook Teruteru Hanamura made. Luckily, Chiaki manages to step in to protect Hiyoko from a rampant Teruteru before things go too far. As Chiaki is nominated as the class representative, Natsumi Kuzuryu, the younger sister of gangster Fuyuhiko Kuzuryu, transfers into Hajime's class.