Master has been feeling tired lately, leaving Mash deeply worried about his health. She takes advantage of holidays to dress up as a maid and attend to her senpai Master. She starts with the innocent goal to relieve his fatigue, but after spending more and more time so close to him, she starts finding it hard to control herself. After her senpai catches her “playing with herself” while looking at his sleeping face, things escalate quickly in a very nice direction...