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 daughters friend. In front of her, Kosuke was able to be his real self and his worn-out heart was healed. However

On the way home after filing for divorce, Kohei Kurose is hit by a car and is transported back in time to his high school days!Determined to enjoy his new life, he heads back to his high school, only to find his ex-wife, Yuzuka, there...?