Tanaka will spare no effort to have a lazy day. He visits a temple before school to pray for a peaceful day, but Miyano, a girl from his class, asks him to make her his apprentice. Miyano explains she wants to be a listless mature woman, but not wanting any new friends, Tanaka declines. However, Miyano doesn’t relent and Tanaka eventually accepts if it’s only for a day. Miyano begins observing Tanaka and attempts to mimic his listlessness.

Today is Valentine’s Day. While girls and boys are excited, Tanaka, who’s not interested in Valentine’s at all, finds a box of chocolates inside his bag. Judging by the pretty box, it’s obvious the giver has feelings for him, but Tanaka feels despair just thinking about having to show gratitude or giving something in return. There’s no name on the attached message and only says “I’m watching you all the time.” Tanaka and Ohta try to figure out the culprit... i.e. the girl behind the chocolates.

To Tanaka, nothing is more important than having a peaceful life. He’ll spare no effort to be lazy and will try everything he can to secure the optimum location during the seating change. Attracted to Tanaka, Shiraishi hopes to be closer to him since she got to seat right next to him.