Otomonai Mina or Chanmina (ちゃんみな) is a Japanese rapper. She was born on October 14th, 1998 in South Korea. Her father is Japanese and her mother is Korean. She is nicknamed "Nerima's Beyonce". As influenced by her mother who was a ballerina, Mina started learning ballet, piano & violin at a young age. She lived in South Korea until she was 3 years old, and after that spent her childhood visiting South Korea, Japan and the USA. She entered a Japanese elementary school, but was bullied for not being fluent in Japanese.