Any way to get much UC in one quest or mission or fight?

I wonder how can we get the UC faster...

You wait until this weekend, then use up your 2x/3x UC ticket.

Can u teach me how? I don't know how is it works... Sorry.

you can buy x2 uc ticket for 1k uc for 1 hour and 3k uc for 3 hours in the shop under the ITEM section.
and with the x3 UC ticket u need to spend 10cosmic coins for 1hour ( the coin can be bought in Item section of the shop too for 500uc per coin)

I see, I'll try to understand it. Thanks!