Shadow Task Quest - 400 level

Monsters on way:
Reward: , , , 300 mln Experience
Warning! To start the quest, we must have completed Paikuhan Quest - 400 level
We go to the place indicated:
We will meet NPC on site Shadow. The course of the conversation: Hi -> task.

He will ask us to kill the following monsters: 750x , 1000x , 1500x
After completing the task, we return to the NPC Shadow and we write: Hi -> done.
As a reward, we receive: , , and 300 million Experience.
Congratulations!