Maru Kiuchi was born on January 3rd, 2002 in Russia. She was 10 years old when she joined the International Division on Pokémon Smash. The first thing everyone noticed about her was she was very cute and Akiyama teased Niccolo about her. She portrayed a mysterious girl from Russia but not too much else was revealed about her on Pokémon Smash as she didn't talk much.
After her stint on Pokémon Smash, she joined Oha Suta on April 6th, 2016 as a bilingual MC at the age of 14. In an interview with Hustle Press on October 26th, 2016, she revealed that although she was born in Russia, she doesn't speak Russian and left the country when she was 2 years old. She speaks English at home with her parents.