ugh I can't edit or delete my comment but mb gang I think it's purely Korean. The 'Liu' made me think the ML is Chinese lol but the fan translation of the novel romanized it as 'Lau' so idk man.
The novel reviews are all pretty positive tho since apparently this isn't your typical omegaverse. I realized that I've seen a few of the author's novels around but I've never read any so let's see how this goes  Also i don't even know if this CR Jade (title) is the same as The Ghost's Nocturne 🤷