The founding of the Crime Bank was, naturally, connected to Hades.
Hades's second son, Jörmungandr, was now ten years old.
At four, he had eaten the Paramecia Mirror-Mirror Fruit and become a Devil Fruit User.
In the future, the Mirror-Mirror Fruit would belong to Linlin's daughter Brûlée.
But Hades had obtained it long before that.
The Mirror-Mirror Fruit gave its user a Mirror World, allowing him to travel from mirror to mirror through it.
The Crime Bank was, in essence, a vast logistics hub built around the Mirror World.
Items deposited with the Crime Bank went straight through mirrors into the Mirror World, where they were stored in numbered, sealed safes within a hidden space.
The Crime Bank's staff also used mirrors to make their mysterious disappearances.
And the certificates were, in fact, mirrors.
Using a certificate to pinpoint the destination, Crime Bank staff sent items out through mirrors.
A mirror might be small, but even the largest objects could pass through it. It was a remarkable power.
As Hades's son, Jörmungandr had received the Kingdom's elite training. Brûlée's future mastery of the Mirror-Mirror Fruit could hardly compare.
In Hades's eyes, Brûlée had barely developed the Mirror-Mirror Fruit at all.
Her so-called mirror-image copies could only frighten people who knew no better. They did not bring out the fruit's true potential.
Access to the Mirror World came with eating the Devil Fruit. It was a purely strategic support ability that consumed no stamina.
Jörmungandr had an exceptional talent for Observation Haki and awakened it at five. Combined with the Mirror-Mirror Fruit, it let him sense the state of every mirror connected to his power.
He could also disable any of those mirrors remotely at any time.
That was when the Crime Bank truly began to make a name for itself.