4. Bölüm: Majime, Sushi ve Robo hakkında ders veren Sensei'yi izlerken, Robo bakteriyel kültür ele geçirmeyle karşı karşıya kalır.

4

Baka narrates that the cashier at the convenience store she went to looked like Buddah. Kanade "Majime" Ninomae wants to get acquainted with Robo, and observes Baka in order to imitate her. Loli offers candy-sticks to Baka's group. Sensei gives Baka a lecture on sushi and threatens her to either improve her grades or get a crew-cut hairdo. Ota wonders why she hangs out with Baka, then faints and has a flashback of when they were in middle-school after Baka puts tabasco in her drink. Baka borrows Majime's notes and states that fried-chicken should be used as currency. After telling that to Robo, Majime realizes Baka also took her observation notes. Majime lends her umbrella to Robo and acts weird. Minami "Yamai" Yamamoto climbs a tree, a bird buils a nest in her hood, then Majime saves her. Baka imitates fried-chicken to Majime (see it to believe it!) and sensei confiscates Robo's bacteria-cultures.