Suzuki Aina was born on July 23, 1995 in Hokkaido Prefecture, Japan. She has two younger sisters. She learned how to sing folk songs when she was 6 and is an All-Japan Folk Song champion. She won the 7th All-Japan Anisong Grand Prix Sapporo qualifying tournament, and was one of the Best Top 3 in the grand finals. She used to be in the track and field club and likes ball sports such as volleyball, basketball, and soccer. She's left-handed.