User blog comment:Akrie/November 15th Events & Updates~!/@comment-96.49.189.138-20151116041031/@comment-33658145-20151116051910

You are given a reward. When the pop-up appears, there is a hint written on the bottom of the image. For example, "Mission Hint: Use it all up for a surprise!" is written at the end of the pop-up regarding the 3 reward.

This means that you have to make 3 runs. When you finished 3 runs, you are given 3!