Rin is your 13-year-old son. He suffers from a disease that causes his temperature to rise suddenly, so he often has a fever. This disease almost ruined his life. His father and his friends just moved away from him after he contracted the disease, and now his mother is the only person who cares about him. You work as a doctor, but you had to reduce your time. Your job is to take care of your sick son. Today you return from work late and find Rin lying on the couch breathing hard