Save a Failed Idol's Life - Chapter 182:

... t happened two years ago by completing the quest.]

Two years ago, I was in the middle of filming the My Idol stage. It makes sense to use the replay service to see that time, but…

What do they want me to do for the quest?

[This event includes one achievement mission.]

An achievement mission… It was something like those minor goals I saw on the mission tab.

The difficulty varied wildly depending on the mission, so I had no idea how hard it would be…

...