is one piece episode 395 filler?

At the Marine Headquarters, a soldier reports to Vice Admiral Garp that Silvers Rayleigh is one of the slaves to be auction off at Sabaody Archipelago, making him burst into laughter. Garp says that he will handle the situation himself and orders him and his subordinate not to mention the matter to anyone else.

Although the soldier is not very sure of the information, Garp is certain that it really is Rayleigh, and cautions against going up the Dark King unprepared. At the Human Auctioning House, Disco starts the auctions.

The first slave is sold for 600 thousand belly.