This a conversation between Zoro and Kuma that takes place after Zoro asks to change locations in episode 485. My shortest yet.
Bartholomew Kuma accepts, but it doesn't mean he truly understands.
"You so willingly choose to die?" Kuma points out again, that he is only after one particular head. "This doesn't have to be your battle to fight."
"It wasn't," Roronora Zoro meets the gaze with calm determination. "But the moment you took a step towards my captain, you made it mine."