BG9

BG9 is a Quincy and a member of the Vandenreich's Stern Ritter with the designation "K".

Appearance
BG9 is a tall individual who has a mask which covers his entire face and extends behind his head. At its front, the mask has a peak at the centre and slits on both sides of this.

The Thousand-Year Blood War arc
Upon receiving the orders of Yhwach, he and the other Stern Ritter gather at the Sun Gate and travel to Seireitei in order to participate in the conquest of Soul Society. Once there, he is soon confronted by Captain Suì-Fēng, who promptly activates her Bankai. However, he immediately steals her Bankai.

Equipment
Medallion: It possesses a round, unnamed device that is roughly the size of a person's palm and has the Vandenreich insignia etched into its surface. When activated, the device is capable of stealing a currently released Bankai in the immediate vicinity, as evidenced when it used the device to take Suì-Fēng's Bankai.