Kosetsu (Ryu)

Kosetsu Ryu was Shirahime’s publicly known zanpakuto during her time before becoming fifth division taicho. His name means “Snowfall Dragon” and when used with the physical sword form, he is a white snow dragon.

He often appears in physical form without the sword as a small ice dragon who likes to play with Yachiru. He is protective of Shirahime and her children.

Kosetsu also appeared as a boy with snow dragon wings in Fifth Division in the Red’s Chapter 7: A Prize. Here Shirahime calls him her son and Daichi calls him his and Yachiru’s older brother.