Reina is from a Webtoon comic called SubZero.

Rei(Reina) is a general for the Crimson Army, and has previously had a relationship with Prince Kyro. If she is disrespected, she will not hesitate to throw a punch. She is not afraid to use force against anything that stands in her way. The Generals don't want Clove to interfere with their secret military plans. They wish to conquer, however the alliance is ruining their plans of conquering. They think that Clove's engagement to Kyro is a nuisance, and want to embarrass her. They want to make her feel as if she was lower than them. They have no faith in her, and question her superiority. Reina is the Grand Marshal's niece, and was raised around him. Very much like her uncle, she is cunning and manipulative. She believes Kyro still loves her because of the history they had together, and refuses to see things differently. She wishes for Clove to be out of the picture, better yet, she wants her dead. She is strongly against the alliance between both Kingdoms. 

Voice: Mid-high, cunning, venomous undertone. We are looking for a voice similar to the previous Voice Actress

Example: https://shortcut-test2.s3.amazonaws.com/uploads/audition/file_path/951119/OkiePinoky_GeneralRei.wav