No spoilers. Kenpachi and Yachiru
Zaraki eyed his paperwork. "Forget this. I ain't gonna do it. Come on, Yachiru. We're going for some fun."
"Yay!" She made a flying leap from the top of a bookshelf, landing neatly on his shoulder. Her aim was good, but if ever she missed, he'd still catch her.
Five minutes later they were in a small field in the real world. Zaraki pulled out a piece of Hollow Bait that Uryuu had loaned him.
He grinned and broke it.
Hollows, Huge and regular, appeared. Laughing maniacally, Zaraki slashed them apart. Yachiru cheered him on, smiling as the blood rained.