I Became Whitebeard? Time to Retire and Cultivate!

Reborn as the legendary pirate Whitebeard, our protagonist activates a Retirement System that rewards him for doing… absolutely nothing. While the world expects him to conquer the seas, he's busy cultivating immortality and sipping tea. Sengoku despairs as Whitebeard grows impossibly stronger in retirement. Even Imu trembles before his awe-inspiring power. When asked how a retired pirate rivals Joy Boy himself, Whitebeard just laughs: 'I'm an immortal cultivator now. Can mere ants shake the heavens?'