Fuuka Esumi is definitely not an ordinary fifth-grader (11 y.o): with the height of 163.5 cm, weighs 50 kg, and a body figure of an adult female, she sure causes a lot of misunderstanding and embarrassment.

Yushima Asako is a former NEET who was lucky enough to get a job as a school teacher. She's full of good intentions, but she's clumsy and uncertain of her ability to guide her students. On her first day of c...