I watched the last episode on newasian or something like that. It wasn't on kissasian.ch at that time. But you can just type a love so beautiful eng sub and you'll find many sites :)
There are even older age gaps, it was too hard for me to watch too but at least he looks young. I am not looking…
Honestly, I watch dramas mainly for the chemistry and romance ???? I didn't mind watching Itazura na kiss for example ???? I just feel awkward knowing their age gap beforehand :/