Miya is Kousuke's daughter. She became a shut-in a bit after her mom died. She stopped going to school and locked herself in her room. She is a high school student (truancy) and has short hair.

My Daughter's Friend
Kosuke has lived to play the ideal self as a father at home and as a manager at work. However, his life changes 180 degrees when he meets his daughter’s friend. In front of her, Kosuke was able to be his real self and his worn-out heart was healed. However, He knows that these are feelings that should never be held.