Her name is Esumi Fuuka. Standing tall at 163 cm with a slender bodyline, she must be a university undergraduate. However, in reality, she is only an elementary school student. With a body figure of an adult and the mentality of a small child, she creates many misunderstandings around her.

__Hobbies:__ driving, historical research

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.
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(Source: AnimeNewsNetwork) 

Jiro Esumi