When the Five Old Stars came to Egghead, Oliver took the live phone bug, led the Navy, CIPHER POL and the Revolutionary Army to hit Marie Joa.
Oliver watched as the live phone bug communicated the arrival of spring. "Now the world will usher in new life, and the Grand Line will usher in its spring!"
(There is a system, but it's the same as not having one, it's not important)
It's over, it's Luffy Ace's nanny story