@JKTV , um no ,i dont think that is the case as rei mentioned that her hair colour was something she got from her dad ,so no ,besides from the looks of it it seems that the guy's parents had him late while in rei's mom's case it's known that she dies a rather young death, at most they might be cousins ,but given how fluffy it is than being dramatized its very less likely to happen now,worst case scenario,she marries his dad fr being their mom which will hopefully not happen as that'd be waaaayyyyy to bizarre