havent read it personally, but ive been on the subreddit, and it's one of the most popular webnovels, as in the top 3 most popular and is frequently compared to Lord of the Mysteries and Reverend Insanity, so if u know either of them, that should give u a general measure of how good the story is. there is romance with the female chara on the cover, Nephis, but it's slowburn and i heard it's decent. idk if there's any annoying characters, but since ive never really heard any complaints in terms of causing unnecessary drama, it seems all of them have a role in the story that serves the plot (however there is a female chara that is frequently complained abt bc of, well, spoilers, but she is very well written imo)

Is it good? Is there romance? Or annoying female/male characters??