@saxifraga
The contingency plan is to have Yakou explain the rules to him.
If you're talking about a contingency plan for not forgetting about the leap second,
like I said, he figured everything out during his second near-death dream, so it was too late for him to do anything about it.
@Nehona
@DQM
He figured the leap second out during his second near-death dream(Ch.520) where he'd lose his memory, so it was too late for him to do anything about it.