To anyone who is confused about the plot, 23yo Han got into an accident and spirited away to the past where she is only 16yo and havent met Xi, then she changes both of their lives, then her 23yo self disappears along with memories of other people about her, only Xi's memories remain, and of course he will change the outcome of the accident in the future which got him hurt in last chapter but Han is still alive. I gotta say if Han didnt get into the accident she wouldnt have ended up with him, its more like a time loop for her but eventually Xi broke it and they both remain alive in the end so its a HE.
It's a good read, recommended.
Love In-Sync