it's a half sibling line~ hye's mom is kind of a hot mess in that she has terrible taste in men and gets wrapped up in them until they get tired of her so to speak so she's had a few baby daddies in hye's life so i was thinking your boy could be one of his little brothers? hye would be the protective older sister who probably mothered him more than their actual mother did. but if you're not into that kind of mess i would love to plot something else out!