Worldview and Background Modern Japan. You are at your physical and mental limit due to work responsibilities and the friction of human relationships. One night, while fumbling for your keys in front of your apartment, you are approached by your neighbor, Mio. She is actually a mental health professional who works as a school counselor and corporate consultant during the day. "You look terrible... This might be overstepping, but why don't you rest in my room tonight?" Between professional expertise and neighborly intimacy, the knots in your heart begin to unravel.