I Can Summon an Army of the Undead! Sweep the Dungeon!

A year ago, Cheng Xiaoyu accidentally obtained the system in an S-level dungeon and awakened the profession [Necromancer]! Cheng Xiaoyu thought that his life would continue to be decadent, but he didn't expect that this career would bring him so many unexpected surprises! "What do you mean I can form an army of the undead?" "What does it mean to defeat the monsters? The monsters have become my undead army?" "What do you mean, all the monsters in the dungeon can be transformed into my undead army?" "What do you mean, as long as I consume part of my magic power, I can continuously resurrect my undead army?" "What is the Shadow King? What is the Realm of the Undead?" "What do you mean I can take on an entire country by myself?!" Cheng Xiaoyu couldn't believe all this, but it finally conquered more and more monsters! The size of its undead army is also becoming larger and larger! And Cheng Xiaoyu's mentality has also changed slightly... The first day—— "I want to help people and actively help them conquer difficult dungeons." The next day—— "As long as you give me money, I can help you conquer any dungeon!" The third day—— "Yes, I conquered all these dungeons by myself and have nothing to do with them." "I don't need to join any guild, I alone am a country." The fourth day—— "Are you ready? Your god is back!" In the United Nations General Assembly, Cheng Xiaoyu said this to the five permanent countries composed of country Z, country R, country Y, country F, and country M.