Who are the main characters in Sadistic Beauty?

Main Characters

1. Cheon Doona / Chun Duna — The titular “sadistic beauty,” Doona is a dominant, complicated woman whose actions drive the psychological power-dynamics in the story.
2. Woo Haesol — A shy, submissive student who is drawn into a BDSM relationship with Doona; his emotional journey features betrayal, heartbreak, and vulnerability.
3. Byun Minho — An ex-professor and male chauvinist at first, Minho becomes one of Doona’s partners; his arc involves pride, conflict, abuse, and emotional abuse.
4. Cha Wookyung — A wealthy, manipulative, and charismatic figure who becomes Minho’s abuser and plays a major antagonistic role in Minho’s life.

If you want, I can also include supporting characters or those from the Side Stories.