Kanata Kurosaki is a high school student living a simple school life. One rainy day, Kanata catches a cold and collapses on his way home from his part-time job. “Are you alright?” The person who saves him is Shion Yumekawa, a beautiful girl who is called the “Sleeping Princess” because she sleeps all the time at school. “I’m so excited to have a friend to sleep with!” “Since when did you and I become… friends?” My relationship with her was only supposed to last for that one night. “Will you be my sleeping friend?” “What the hell is a sleeping friend?” “Well, it’s a friend who sleeps with you.” “…Sure?” Since then, Kanata and Shion have been sleeping together regularly. “Breakfast will be ready soon, so be patient.” “Would you like to have a study session with me?” “It’s like a date, just the two of us going out together…” Huh? I thought you said our relationship was only about snuggling. This is a romantic comedy about a lonely, gloomy protagonist who becomes involved in a lovey-dovey relationship with a silver-haired, respectful-tongued, caring, clumsy beautiful girl while sleeping together (without realizing it).