Shinseinen refers to a Japanese term that translates to "young person" or "youth." It is often used to describe individuals in their teenage years to early twenties, a time characterized by growth, exploration, and the pursuit of identity. This period is significant in Japanese culture, as it is when many young people begin to transition into adulthood and take on new responsibilities. In Japan, Shinseinen is also associated with various cultural events and traditions, such as Seijin Shiki, or Coming of Age Day, which celebrates those who have turned 20. This day marks the legal transition into adulthood, and festivities often include ceremonies, speeches, and gatherings to honor the new responsibilities that come with adulthood.