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.

After the Vandenreich leave Soul Society, BG9 is present at a meeting of the Stern Ritter where Yhwach announces that Uryū Ishida is to be his successor. Later, he is among a group of Stern Ritter accompanying Bazz-B when the latter questions the appointment of Uryū as Yhwach's successor. BG9 tells him that only his majesty can explain that.

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 Jakuhō Raikōben.