I spent way too long searching for this yesterday. The title you're looking for, 'Sultan Love,' is one of those mobile webtoon-style romance manhwa, right? From what I found, it's serialized on sites like Manta and Tapas, which are official platforms, but you need coins or a subscription for full access. There are definitely fan translation sites where you can read it for free if you dig around a bit. I stumbled across one called Mangago, but the uploads weren't in order and a few chapters were missing. Those aggregator sites are a mess with pop-up ads, though, so have an ad blocker ready.
Honestly, if you get really into it, I'd recommend just doing the free daily unlock on Manta. The quality is consistent, the translation is way better, and you support the creators. Chasing down scattered chapters on unofficial sites just gets frustrating after a while.