She released her second single, "Gimme! Revolution" (ギミー!レボリューション) which was released on Novemit peaked at 12th place on the Oricon Weekly Single Chart and stayed on the chart for 12 weeks. The main song in the single was used as the opening theme song for the anime, Riddle Story of Devil. Uchida made her solo debut in April 2014 under Pony Canyon with her first solo single, "Soushou Innocence" (創傷イノセンス) it peaked at 14th place on the Oricon Weekly Singles Chart and stayed on the chart for 9 weeks. Her nicknames include "Marei-chan", "Mayayan", and "Mareitaso". She is a fan of the baseball team, Fukuoka SoftBank Hawks. Īs a voice actress, she admires veteran voice actress, Kikuko Inoue, and is close friends with fellow voice actress and singer, Sumire Uesaka. In April 2010, she signed to voice talent agency I'm Enterprise. Upon graduation, she made her debut as a voice actress in the OVA Boku, Otari-man as an office employee. Uchida completed her studies in narration school during 2009. Afterwards, she went on the internet and read magazines to decide on which university for voice acting she was going to enter and later on decided to join the Japan Narration Acting Institute (日本ナレーション演技研究所 Nihon Narēshon Engi Kenkyūjo). In the autumn of her third year in high school, she decided to become a voice actress. At the time she entered middle school, she joined the Theater Club and later on realized that she wanted to voice game characters and she soon then discovered the profession of being a voice actor. When she was in elementary school, she had a strong interest in gaming.