35 year old Umezawa Isamu works for a major trading firm and is a single dad to his only son, Hiroshi, a 6th-grader who hates to study but loves to play baseball. Ever since his wife divorced him on a whim 5 years ago, his days have been a constant struggle to keep up with work and household chores. One day, Isamu sets out on the task of finding his son a prep school for junior high entrance exams, but he becomes desperate when finding that most schools have already closed off applications. It i...