Nanami Akira

The third oldest of the five Nanami sisters

A former member of the US military special forces.

She has taken care of Riku since he was a child, trying to raise him according to her strong sense of justice. How could he possibly agree to this?! She has a tough personality, and she tries to raise Riku to be a man. She usually acts calmly, but her clumsy personality and extremely competitive spirit sometimes lead to failure... *Don't stand behind her!