For real
yeah, it would have been nice but I think it is also good clearly there is an age gap and it makes the love story seem more realistic and different that she didn't end up with yan. Yan sees them as family and he thinks of her parents as his very own so that also would have been pretty clear and since their fate was changed they are there own person now not following the original story plot!
Spoiler
I'm pretty sure they end up together, like in the very end, while she's an adult. Right now they meet when she's 15 and time skip to 17, it would be weirder if they had chemistry now.
so is it really not yan and loina?? （￣へ￣）would be nice if they do end up together but currently, they do not have chemistry