Nice to meet you! I have theory that i want to share for book 3 (Saranghae) hehe. Though i know that they officially become soulmates if the MC and the boys say I love you to each other, what if the way to get her 4 soulmate marks back is having a very strong mindset. Like “the True Soulmate Bond”. Because the boys and MC love each other so much even w/o soulmate mark, their bond and trust will get stronger that it’s highly impossible for the marks to get stolen. I also think that their abilities will enhance even more