Rei Riku, Gin no Guardian Wiki

Its possible that she has some relation or connection to "The Collector", due the exact resemblance between the two of them and the fact they share the same voice actress; possibly even being the same person.

Winter 2018 Anime, Seasonal Chart

Spring 2017 Anime: Gin no Guardian The Indonesian Anime Times by KAORI Nusantara

Future Card Buddyfight Review

Riku Suigin - Character (88080) - AniDB

Suigin Riku, Gin no Guardian Wiki

Winter 2018 Anime, Seasonal Chart

Gin no Guardian (The Silver Guardian)

Rei Riku from The Silver Guardian

Rei Riku, Gin no Guardian Wiki

Gin no Guardian (The Silver Guardian)