In this world, with the emergence of the 'Gate', humans are divided into two categories: users and ordinary humans. Cui Lijing was lucky enough to awaken as a user and have the opportunity to choose his own profession... However, a moment of misjudgment made him choose the necromancer, the most dismal profession.
"The most shocking dungeon accident in history - what was the reason for the failure of the 'Commander's Tower'?"
At the same time, Choi Li-kyung, who was looking for strengthening materials to upgrade the skeleton servant 'Lark', finally reluctantly participated in the raid of the [Commander's Tower]. In an accident, he fell alone, but unexpectedly revealed a hidden truth.
"Please, I am willing to do anything... Please sign a contract with me and save me!" (Choi Rikyung)
——Are you willing to do anything? …
[Do you accept the 'oath' proposed by 'Seo Do-won'? ]
——You will do your best to help me complete my revenge, and I will do my best to save you in your moment of crisis, anytime and anywhere. How about it?
[Signing a new contract with 'Seo Do-won']
The exciting journey of revenge between junior necromancer Cui Lijing and top mage Xu Daoyuan has officially begun!