is one piece episode 23 filler?

Zeff criticizes Krieg for his failed entry into the Grand Line. Krieg recognizes Zeff as a former pirate known for fighting only with his legs, but notes that he had since retired from piracy after losing one of his legs.

Believing he only lacked the knowledge needed to traverse the Grand Line, Krieg demands Zeff's old logbook to help him return to the sea. He returns to his ship to give the food to his crew, warning the staff to vacate before he returned.

Gin apologizes on Krieg's behalf, unaware of his plans to betray the Baratie.