About the title
After his mother's death, ten-year-old Michi lives in an orphanage. One day, among his mother's records, he finds an unsent letter whose recipient might be his biological father. He imagines his father as big and strong, but in reality, the man turns out to be even shorter than he is. As soon as the other kids at the orphanage find out, Michi becomes the target of mockery and pranks. The main character decides to run away, but the escape only creates more problems.