Seventeen-year-old Mugi Awaya and Hanabi Yasuraoka appear to be the ideal couple. They are both pretty popular, and they seem to suit each other well. However, outsiders don't know of the secret they share. Both Mugi and Hanabi have hopeless crushes on someone else, and they are only dating each other to soothe their loneliness. Mugi is in love with Akane Minagawa, a young teacher who used to be his home tutor. Hanabi is also in love with a teacher, a young man who has been a family friend since she was little. In each other, they find a place where they can grieve for the ones they cannot have, and they share physical intimacy driven by loneliness. Will things stay like this for them forever?

Kanoko Tsukishiro is a 26-year-old woman who doesn't know what love is. She works in the literature editorial department. Saku Kagaya is a popular novelist who can not love. They fall in love with each other.

Mitsuru Fukushima stumbles on the skeleton of a woman named Mitsuko who looks like him. He assumes her identity, and goes to the school where she was scheduled to start work as a teacher. His students are tough as nails, but another new teacher, Keiko, claims to recognize him(her), and convinces him to persevere in this new job.