An is the outgoing and lively daughter of Ken, one of the artists headlining the "RAD WEEKEND" event. She used to sing solo at events and on the street, until she met Kohane and asked her to be her singing partner. She can get hotheaded at times, but is generally very cheerful. An is a first-year student at Kamiyama High School, where she is also a hall monitor.

(Source: Wikipedia)