is one piece episode 696 filler?

Luffy and Law race up Bartolomeo's staircase, with Luffy intent on beating Kyros to get to Doflamingo. However, Law tells him to focus on the nutcracker pursuing them.

On the Flower Field, Diamante brutally attacks Rebecca, the force of his attacks sending her sprawling on the ground. One of his strikes sends her reeling a large distance, causing the key to Law's handcuffs to fly away from her, and Rebecca remembers how she was entrusted with the key.