[You have entered the dungeon at Gwachun Station's 1st Exit.] Wait—? What is this?? A necromancer ...
COMPLETED 150 CHAPTERS
The manhwa is different from the novel and it ends early.
The novel has harem but the manhwa doesn't even touch on it (THANK GOODNESS)
https://www.novelupdates.com/series/seoul-stations-necromancer/