Souju Shirogane

Souju is mild-mannered and ill-bodied, whereas Sara is rougher in her speech and more energetic. Nozomu meets Sōju while she was painting at the shrine, and Sara wanted him to be loyal to her.

A foil for her sister she seems to be quiet and not outgoing like Sara. She is good at cooking, and also has a strong affection toward Rentarou.