Yuya has long admired his mother's friend, Tsubaki.When he meets her again, his old love flares up.He couldn't control his enthusiasm and set her up for her night.Tsubaki who notices his act but stays silent.However, she was swept away by the throbbing of her body that she touched, and overlapped her body with Yuya many times.Tsubaki gradually avoids him because she feels guilty about her unfaithfulness with her friend's son.