kim chan-ju, nhk world, seoul. >>> we now turn our attention to japan's new adults. the country has over a million this year. monday was coming of age day, a national holiday where people across the country celebrate turning 20. nhk world shows us what this day represents for the freshly proclaimed adults. >> translator: i'll try my best to become a fine adult. >> translator: i want to become a grown-up man who can stand on his feet and make decisions. >> reporter: yokohama holds the biggest ceremony every year. the city saw over 30,000 mark a milestone this time. in osaka, a group of new adults felt on top of the world after they climbed japan's tallest building. youngsters often dress in traditional kimono or business suits for the celebrations, while others are a bit more creative. >> translator: i will be a good housewife. >> reporter: the holiday was created in 1948 to encourage the younger generation as the country recovered from world war ii. it aims to remind them of their responsibilities after becoming old enough to legally smoke or drink alcohol. these new