Well, that drama got lost along the way. The story was driven by revenge and simply put a forced romance making the protagonist lose all power and everything she took more than 10 years planning.

Yoongyeom wasn't directly connected to what her family and she went through, but he was indirectly connected. He kept a bloodstained contract and continued to take advantage of the success of the company that was robbed, he knew that Sora killed someone but pretended not to know, Lael's mother went to protest at LY and he didn't give a damn about her. Also, he assaulted Lael.

Lael choosing to stay with him despite everything was the same as betraying her parents

Eunpyeog was the only character I loved from start to finish and I was glad he was safe and sound.

And about the little girls, they just didn't appear in the last episode and it's not known what happened to them, and they should have ended them since they played an important role in the story.

Apart from these negatives and speaking of the positives, at least everyone paid for what they did. Han Panro, Kim Jungcheol and Kang Yoongyeom died. Sora went crazy and was admitted to a psychiatric hospital.
But what I liked most of all were the impeccable performances, especially Seo Yeji's. You could see her feelings just by the look and facial expressions on her face. Facial expressions that changed quickly and were impactful. Seo Yeji rocked this role, she always rocks, she's a queen.

Anyway, I think this love plot spoiled the whole story that had enormous potential to be considered one of the best revenge dramas. That said, I don't think it's worth watching.