The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.
The electric toilet seat, which can be heated and has various cleaning and drying functions, has become a popular feature in Japanese households.
My Hero Academia, created by Kohei Horikoshi in 2014, is a popular manga and anime series that follows the adventures of a young boy with no superpowers who dreams of becoming a hero.
