i raise skeletons

a necromancer is a profession considered the noble of nobles, with less than 1,000 in the population worldwide! i was born with a diamond spoon, no, a necromancer spoon in my mouth! …or so i thought. ‘i’m just a defective necromancer.’ [using skill, ‘summon ordinary skeleton’ (e-rank).] you’d think a necromancer should be able to summon liches, dullahans, or death knights. but nope, i can only summon skeletons. but then one day, suddenly… [hidden condition achieved!] [condition: the 10,000 uses rule] [your rank has upgraded to d-rank!] i achieved the hidden condition and gained the ability to raise my skeletons. from e-rank to s-rank! the story of joo donghoon unfolds, the world’s only cursed necromancer, who’s speeding toward becoming a ranker!