Though I knew it's forbidden, I was attracted to him the first time I laid eyes on him.

Era was confused when Henry, her estranged father, showed up one day at their apartment. He said, her mom invited him to look after her welfare while she's overseas. Era tried to avoid and hate him. However, because of his natural charm, she found herself getting attracted to him. Not in a fatherly way. They gave in to their attraction even if it is forbidden.

Are they living in sin or is Era's mother hiding secrets from them?

NOTE: THIS ISN'T AN INCEST STORY.