After an accident, the amnesiac Sue was taken in to live with Torao's family. She always had the urge to become a singer, but didn't know why. As it turns out, Sue is actually part of a band formed with her two twin sisters. But Sue's climb to the top of the charts is a long and hard way. (Source: AniDB)
Watch Sue Cat episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.