You Were Asked to Temporarily Take Charge of Impel Down City, but You Captured the Four Emperors?

Shirakawa traveled through the world of pirates, bound to the system, and became a member of the Marine Corps. With the help of the system, I actually captured Ace right at the beginning! Doesn't this unite Liang Zi with Straw Hat? Baichuan quickly opened the back door for Ace secretly, and started brainwashing under the guise of Whitebeard. Ace, listen to me, this is really a misunderstanding!