She was a member of the idol group AKB48 under Team K. She is an alumna of Seijo University, where she studied economics and also earned her postgraduate degree, as well as a certified weather presenter,[2] financial planner,[3] disaster prevention specialist[4] and a career counselor.

[6] She was featured in AKB48 Single for the first time in Kaze wa Fuiteiru, in the coupling song "Tsubomitachi".

In the elections for the 32nd single of AKB48, she placed 45th overall with 16,221 votes and became Next Girls and was featured in Koi Suru Fortune Cookie's coupling song, "Kondo Koso Ecstasy".

[10] Even though she didn't place in the tournament, she was featured in Suzukake Nanchara's coupling song, "Mosh & Dive".

[11] In the elections for the 37th single of AKB48, she placed 24th overall with 30,097 votes and became Undergirls and was featured in Kokoro no Placard's coupling song, "Dareka ga Nageta Ball".

In the elections for the 45th single of AKB48, she placed 10th overall with 58,624 votes and became senbatsu of Love Trip / Shiawase o Wakenasai.

[22] She also joined Produce 48 as one of 39 girls from AKB48 to form a Korean-Japanese group that will promote for two and a half years.

In the position evaluation, she was in the team which chose the song "HandClap" by Fitz and The Tantrums, she ranked 5th place out of the 6 people in her group, she did not get any benefit.

In April, it was announced that Muto had passed the weather presenter certification examination held by the Japan Meteorological Business Support Center [ja], which has a success rate of 5.5%, after multiple previous attempts.

She played the role of Tetsuya Sakai, based on Hiroki Matsukata's original portrayal.

[24] On August 17, Muto announced that she joined Ikushima Planning Office (formed by ex-TBS announcer Hiroshi Ikushima) as her new agency, this follows the tradition of AKB48 members transferring from in-house to major agencies such as fellow members Nana Okada and Rin Okabe.

During the second day of AKB48's 60th single release commemorative concert in Nippon Budokan, she announced her graduation from the group.

[26] On October 2, Muto announced that she had passed the SDGs (Sustainable Development Goals) Certification Exam.