Dear Friends - Rina & Maki

There is a father without affection and too affectionate mother, and then there is a beautiful 18-year-old high school student Rina. "Friends are created for use," Rina says when she is found that she has sex with a guy of one of his friends. Rina has such a low opinion of friends, but when it is hospitalized, her classmate at the elementary school Maki appears in front of her, wanting to continue his long-standing friendship. Nowadays, what is the meaning of friendship?