The Hirata are a typical family residing in picturesque Kosai, Shizuoka Prefecture. Their lives are thrown in chaos when an earthquake strikes and causes a nearby nuclear power plant to explode. They must evacuate their home.
Shinko (Karin Aiba) is a high school student from Hamamatsu. Due to university admission pressures, she struggles with her mother. She hasn't really made conversation with her mom in a year. Shinko's friend Misato (Mayuu Kusakari) then recommends to her to join the school's calligraphy club. Shinko is impressed by Teacher Yatsushiro's (Kazuki Namioka) words. Teacher Yatsushiro is the one who takes care of the calligraphy club. Shinko decides to join the calligraphy club.
Based on a manga with the same name created by Aida Natsumi, 'Switch Girl!!' revolves around a high school student named Nika who appears to be a stylish and fashionable girl at school, but that's really a fake persona that she uses when she's in public. At home, she “switches off” the facade and her returns to her true slovenly nature. Kiriyama Renn plays the good-looking transfer student Arata, who is Nika's love interest in the story.