Unidentifiable:
Lost This drama, the "romance" is so subtle that honestly, for the longest time I thought it was gonna remain platonic. It absolutely ticks the box to subtle romance. Not sure if it fits the high sexual/romantic tension. The leads have amazing chemistry, but it's relaxing, beautiful, calming - the kind that is just so beautiful it brings tears to your eyes. There are some very charged moments between them, particularly towards the end, so it may still fit.
It's a very character driven story, quite solemn and introspective. Incredibly well written.
definitely on my watchlist, thanks for the recommendation