Imada Mio is a model, talent, actress, singer, and ex-gravure model. She was born in Fukuoka City, Fukuoka Prefecture on March 5, 1997. She currently belongs to the agency Content 3.

When she was 16, she was scouted in Shintencho. For a time, she was a part of the model agency CGE. She became a part of the 3 person group Sagemon Girls in 2016 as the leader and center. She was recruited by BIGFACE (now Content 3) at the age of 19. She later moved to Tokyo and joined the agency with an interest in becoming an actress. Later that year, she would star in Nakagawa Shun's independent and acclaimed short film "Kalanchoe".