Oh Hyera is portrayed as the primary antagonist in the series. With her distinctive pink hair and eyes, she often dresses in provocative attire. At 21 years old, she exhibits concerning behavior and is known for engaging in numerous romantic relationships with various women. Unafraid to explore dominant-submissive dynamics, she actively participates in sadomasochistic practices. Hyera has a crush on Yuna. Hyera's plan is to break up Yuna and Minji by using Minjae. She hates it when she sees Yuna and Minji in love.