Hotaruko is Ryo&#039;s cousin. She is the title character of the original dub, while her names translates to little firefly. Upon first appearance, Hotaruku appears to have a schoolgirl crush on her Ryo.

Lured to a cursed island by a carnal cult, victims are brought to the throes of ecstasy, then brutally sacrificed in a bloody occult ritual. When sexy Ryo visits her late mother's island home, she's in for a terrifying surprise. Can she escape with her life and her virtue intact.
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(Source: Anime News Network)

Carrie Keranen is an American voice actress, production manager, producer and voice director. She is best known for her work with 4Kids Entertainment, Bang Zoom! Entertainment, DuArt Film and Video, NYAV Post, Studiopolis and Funimation. Her roles include Satsuki Kiryuin in Kill La Kill and Casca in Berserk. In cartoons, she voices Alya Césaire in Miraculous: Tales of Ladybug & Cat Noir. In her live-action work, she has played Piper Tate in Untitled Web Series About a Space Traveler Who Can Also Travel Through Time.

(Source: Wikipedia)