Preventing the Creation of the Time Machine

I see you take responsibility for your actions. As do I...

I will send you into the past using a black whole activation device. Will you take on the burden of fixing the present and the future?

Good. Complete the missions and then return to me.

Wake up! The world will come to ruin if we don't fix this soon!

Good. You've completed today's mission. Thanks to you, we've decreased the number of Time Machines built.

Still, there are some left. Help us again tomorrow!

There are still missions that haven't been completed.