He Disappears After Completing the Task, and His Career Is Impatient.

In an unexpected mission, I made a deal with a "ghost" and it forced me to make a deal that did me no good and was all bad. It said that you can only go back if you help him reach the pinnacle of power. I have never thought of myself as someone with such strength, so let me do it for a few days. I found out halfway through the mission! He seems to be able to do it on his own without me "helping" him. I just need to be ready to use me when he needs me. ... You have a scheming mind... ————Update n months later———— Unexpectedly, just a few good years after completing the mission, the waste system issued an alarm and brought me back here again...