Korean slang or not, you can't argue this to be a horrible name considering marketing it outside of korea.
Never the less, this manhua is decent, even good considering its genre. There are some things I consider logical mistakes (especially sometimes in case of how the developers of that game world designed some things), but nothing so bad, you'd cry BS. MC does his thing. Sometimes you will not consider him the sharpest tool in the shed, but he is doing it on his own accord and secretly, so we aren't feed "Oh, so smart." and "He's so clever!" by bystanders all the time. I like that. The comments of the "viewers", something I would like to consider a mainfeature of this manhua, aren't that funny, but oh well.
Overall it's a nice, fluent read to pass some time.