葛城 優奈

Yuuna just started 6th grade in elementary school. She's shy and easily startled. When Satoshi flips her skirt in school it makes her nervous all day long. She wants to be friends with anybody. She's naive and easily swayed by others.

Her breast size is average for a 6th grader. In other words, she's almost completely flat.

In Kodomo no Himitsu her eyes are red.