Review Detail of Reigngun in Solo Leveling(Only I Level Up)

Started reading this novel and could not stop thinking, "this really reminds me of Seoul station necromancer." I actually had to look up if they were by the same author. Stories are very similar, to the point where I'm considering dropping this because it's like I've already read it before. Guess the saying of "there's nothing new under the sun" holds true again.