Yusuf Zuck quickly decided to head to Sky City before dark, because Donovan Blackwell and his palace entourage are in Nine Tripod City, which is far from Sky City. He can use the Door of the Other Shore for teleportation, but Donovan can't!
So even if he steals the treasure and comes back, no one will find out!
The reason for choosing nighttime is because he wants to take everyone with him.
"You're taking your family too?" Ayden Acme said speechlessly, "It's just a matter of half a night, why take them? Nine Tripod City is safe now, the Simon Clan is out in full force to maintain order, and nobody dares to cause trouble!"
"No way, wherever I go, my family has to follow. I won't leave them." Yusuf Zuck was scared because only when his family was by his side could he truly be at ease.
He can leave behind the hundred family guards and hundred servants, not take Hugh Zuck or the Golden Protectors, or Black Seven, but everyone from home must come with him.
