You can't just put this 2nd ML that loved her at her lowest and not expect us to revolt. Even if she has trauma, its so cliche for her to snag her step-sister's fiancé, just to complete the revenge story. Honestly the whole past life thing with the 2nd Ml has so much more depth, and I love storylines where people are reunited so I'm a bit biased, but c'mon. Honestly the revenge part with her sister is bland, especially since the sister is such a basic villain and it got wrapped up quickly too. The whole brothel part and the 2nd ML is SOOOO much mor interestingヽ(`Д´)ノ