When Juzo falls behind in school, his classmate Ryo Shiraishi starts tutoring him. He also joins the Home Ec Club run by Ryo's older sister, Chisato. Noren joins too, hoping it'll help with making ramen. Then, after Mitsuoka Pharma announces that whoever marries Noren will inherit the company, a cornered Noren blurts out something completely unexpected!

Juzo is still uneasy about pretending to date Noren. But then Shin Kohazame, a middle-school assassin from the Chinese underworld group Yuigan, transfers into her school to become her fiancé and claim Mitsuoka Pharmaceutical's research and new drug. Shin challenges Noren's "boyfriend" Juzo to a duel, and their battle begins!

Juzo and the Home Ec Club bring rice balls to the baseball team, where they meet elite ""Unicorn"" Tenma Tendo. An ace in baseball, soccer, and basketball, Tenma boasts that he'll become a "triple threat superhuman." When he challenges Juzo to futsal simply because he's "in the way" and mocks the Home Ec Club as a pointless play club, Juzo accepts.