Hanamaru Kotona

The ninth sister.

An earnest girl, she is the type who always has a reference book in one hand. She is happy to spend her time studying, making her special amongst the sisters.

She has a rather quiet personality and doesn't talk much. Some think she has a communication disorder or it's possible that she just doesn't pay attention to anything other than her studies.

She doesn't communicate much with her younger brother, nor does she even bother trying,