Getting into Whole Cake Island's waters without a sound really did not require any particularly ingenious scheme.
Tsugikuni Yoriichi merely had to take control of the Rainbow Pirates and use their ship to enter Whole Cake Island.
Pirates, as creatures—
Were always afraid of death and selfish. Some of Haul's crew had already recognized Tsugikuni Yoriichi. Though they had no idea why someone like Tsugikuni Yoriichi had appeared in these waters, his purpose no longer mattered to them.
What mattered most was how they could keep their lives in Tsugikuni Yoriichi's hands.
Tsugikuni Yoriichi and his New Marines had stood firm in the New World for so many years. His own vicious reputation had long spread far and wide. Ordinary pirates would not dare confront Tsugikuni Yoriichi head-on; merely hearing his name was enough to make their legs tremble.
In the present-day New World, aside from Tsugikuni Yoriichi, only Whitebeard had a bounty exceeding five billion. And the last man whose bounty had exceeded five billion was the dead Pirate King.
In the New World, it was often quite simple to judge a "stranger's" strength—one only needed to look at their bounty. That the World Government had placed such a high bounty on Tsugikuni Yoriichi despite his youth was enough to show how threatening he was to them.
And in the Pirate World, a person's threat level was largely tied to their strength.
Haul and his crew believed that Tsugikuni Yoriichi had already reached the level Roger once stood at, and Whitebeard stood at now. The word "legend" could already be used to describe Tsugikuni Yoriichi.
The Rainbow Pirates' ship was a large vessel capable of accommodating nearly five hundred people. In the New World, most pirate crews actually operated as large fleets.
After all, there was strength in numbers.