A room in a love hotel... A depressed man who has too much free time due to recent circumstances appears to be waiting for a delivery health lady, and the person who comes there... The first female college student calls me big brother, and she is her childhood friend Noriho... The second person is Himari, a childhood friend of mine six years apart and my student when I was a private tutor. The third person is my childhood friend from when I was still living in the countryside.