This article explores the legal definition of a minor in Japan, age restrictions for activities such as voting and purchasing alcohol or cigarettes, parental responsibilities, education and employment opportunities for minors aged 15-19, and the role of guardianship in the Japanese legal system. Minors are legally defined as anyone under the age of 20 in Japan, and are subject to different laws than adults. Parents must provide their children with food, clothing, medical care, and education until they reach adulthood at 20 years old. Minors aged 15-19 may attend school up through high school graduation if they choose to do so; however, those who choose not to go to school may still find employment opportunities available to them if they meet certain criteria set by their local government. In cases where a minor does not have any living parents who can provide guardianship over them due to death or abandonment by one parent or both parents combined; then another adult relative such as an aunt/uncle/grandparent/etc may apply for