Yūko arrives late for class but is unable to enter due to the various traps set up by Mai. When she finally does enter, no one is there. Annaka goes to the park to eat Nagashi sōmen but the food is being served by a mad woman. After Nano praises how mature her ponytail looks, the Professor decides to act like an adult much to Nano's worry and Sakamoto's annoyance. Yūko doesn't want to do her homework and goes deep into thought about her future.