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.

Nika and Arata are finally together, and with their looks and lovey atmosphere they are the best couple in school. Season two will show how they further develop understanding of each other, and maybe even move their relationship to the next level... With more adventures to come up with their friends, how long can Nika keep her "switch off" self a secret? The drama gets more a more serious plot into the lives of their friends, as Nika and Arata help them with their problems.