The summer 2017 anime series Nana Maru San Batsu, aka Fastest Finger First, is working through its run and there will be some quickie shorts associated with it.
The eleventh one has landed that clocks in at thirty-seconds and prepares us for the quiz with each new episode.
The main series premiered on July 4th, 2017 for its twelve-episode run with new episodes every Tuesday.
Explanation: It means that one wins when he gets seven correct answers, or gets disqualifed when he gives three incorrect answers.