Hanai Fights Back! Karen Sparkles! Reunion with Big Sister!.Hanai hears rumors that Harima saved some girls from the tea club from thugs who were harassing them, and thinks he must have set up the incident, so he runs off to confront him. Arriving at an alley, he sees a figure preparing to leave on a bike, with a wake of downed punks. At school, Lara calls Karen for lunch, when Imadori comes and immediately sparks her disgust - especially after he accurately guesses her cup size as D, prompting Lara to attack him with a fork, which Karen stops point-blank with only her chopsticks. He decides to turn to Mikoto, making Lara tell Karen to take him for herself if she likes him, meanwhile offending Mikoto. Things get even worse when Imadori tries to defend her and ends up on the receiving end of a choke hold, and then Tenma, trying to save him, gets the same treatment. While the school receives a new nurse, Harima refuses to enter the 2-C room, afraid they would notice the cap he uses to cover his bald top. In the epilogue, homeroom teachers of classes 2-C and 2-D, Hayato Tani and Kato, trying to investigate the incident involving Harima and Tae.