King the Land

Gu Won's childhood was like a fairy tale. His family was wealthy, he lived in a big house, and he could have anything he wanted. However, his life was anything but magical. His mother abandoned him, his sister hated him, and everyone around him wore a fake smile...everyone but Cheon Sa Rang. Sa Rang was his only friend, and the one person he knew who actually had a genuine smile. As he was starting to care for her, an unfortunate accident tore the pair apart and their paths wouldn't cross again until years later...

(Source: Tapas)

Note: This is a prequel of the tv drama of the same name that aired in June 2023.