Which manhwa is in the art from the banner?

if I recall correctly, it's just art from an artist on twt. unless it's actually a manhwa, but I'm 99.99% sure it's the former.

I always thought of it as a NamKyum fan art

Its a fanart from https://twitter.com/1L9l2Aa8UCL0IGJ?s=20. The fan art itself is from omniscient reader's viewpoint: https://www.mangago.zone/read-manga/omniscient_reader_s_viewpoint/