
Quick answer — Anna Mugiho voices Kimi in With You and the Rain, Chibi in Love Live! Superstar!!, Manmaru in Love Live! Superstar!! and 9 more characters.
Anna Mugiho voices Kimi (With You and the Rain), Chibi (Love Live! Superstar!!), Manmaru (Love Live! Superstar!!), Kuromitsu (Love Live! Superstar!! Season 2), Ciel (The Weakest Tamer Began a Journey to Pick Up Trash), Kinako (With You and the Rain), Kuro Neko (With You and the Rain), Alpaca (Love Live! School Idol Project) and 4 more.
Kimi is voiced in Japanese by Anna Mugiho.