Born in 1995, based in Tokyo. Her artist name comes from her real name, Manatsu Imaizumi — “Ai” meaning “Lovely” and “Natsu” meaning “Summer.” Influenced by 1990s rock, she presents a contemporary form of rock filtered through her innate pop sensibility.

She began producing music at home in the summer of 2013 and released her work online, gaining attention through SoundCloud and Twitter. In 2015, she released her first album #LovelyMusic, followed by her major debut album LSC in November 2016, both receiving acclaim. Her long-awaited third album The Third Summer of Love was released in September 2020.

In 2024, she composed the music for Garden of Remembrance, a short animation directed and written by Naoko Yamada. Her new original mini-album Music For Walking (Out Of The Woods) is scheduled for release on January 29, 2025. A cute yet cool, energetic rock girl.