
Quick answer — Nene Hieda voices Kamome Kushima in Summer Pockets, Amyu in The Reincarnation of the Strongest Exorcist in Another World, Ponta in Skeleton Knight in Another World and 22 more characters.
Nene Hieda voices Kamome Kushima (Summer Pockets), Amyu (The Reincarnation of the Strongest Exorcist in Another World), Ponta (Skeleton Knight in Another World), Anna Nagumo (Ippon! again), Aimi Miyoshi (Kirio Fan Club), Rain (I Left My A-Rank Party to Help My Former Students Reach the Dungeon Depths!), Maika Takatori (CUE!), Douki-chan (GANBARE DOUKICHAN) and 17 more.
Kamome Kushima is voiced in Japanese by Nene Hieda.