Foster Plus Co.

Female students, including Hikari Tomonaga, from a high school cheerdance club follow strict instructions from their teacher Kaoruko Saotome. They compete at the USA Cheerdance Championship.

Hibiki Shimada, a normal 17-year-old high-school student, still does not know how to fall in love—although surrounded by love "experts"—until one day she realizes she's fallen in love with her hot and nice 26-year-old teacher, Itō. She then takes a path to make her teacher understand how she feels for him.