Kouda Miyoko

The protagonist grandmother. As a child the protagonist was taken care of by his grandmother due to his parents being busy. In current time his grandmother and grandfather pass away leaving him heart broken.Due to unknown reasons he travel back in time where his grandmother is still alive and decided to spend more time with is grandmother but for unknown reasons his grandmother dose naughty things to him something he doesn't understand. In reality it was a dream waking up on the day of his grandmother's death realizing that he grandmother was his first love.