@sprite-1 I thought the point of manwha is people restarting their romantic lives and avoiding regrets. Not really sure if it's cheating if the relationship is in the future.
I think the author gave at some point and we have left with this mess. Probably started with something interesting and couldn't figure out how to end it correctly.
This story is like Forest Gump but Korean and more sex.
Honestly I have never read anything that maybe me question why I was reading it. The beginning is somewhat interesting but it gets so bad.