Below are the key themes of catastrophic necromancer chapter 49:-
1. Necromancy — The focal point of this manga is the forbidden power. Moyu surprisingly finds a job as a Necromancer and unleashes the dark power of summoning the skeleton soldiers who are becoming stronger in each chapter.
2. Unexpected Alliance — Moyu is a kind of person who always had difficulty in making friends, forms an alliance in this chapter with a couple of Yiyi’s friends who are all above level 21 for competition.