Kazuki froze. The description matched Rukia Kuchiki's old partner before she met Ichigo. A Shinigami reassigned, then lost in the line of duty.
“You met someone who knew Rukia’s first partner?” Ichigo asked, jaw tight. bleach-season-1-16-english-dubbed-download
Her name was Yuna. She wasn't a Hollow, not yet. Just a Plus who'd refused to cross over, waiting for a brother who never came. Kazuki, a rookie substitute Shinigami still clumsy with his zanpakutō, knew the rules: console her, perform the Konsō, and leave before sunrise. Kazuki froze
Kazuki just nodded, handing him the pebble that had fallen from Yuna’s hand as she faded. knew the rules: console her