Asuka Katakura holds the position of the 6th Seat in the 3rd Division of the Gotei 13, serving under Captain Roujuurou Otoribashi.
Alongside Lieutenant Izuru Kira and other officers of the 3rd Division, Asuka is stationed near one of the pillars of blue flame created by the Vandenreich invasion. When Taketsuna Gori expresses his frustration about waiting and hopes for the enemy to appear soon, Asuka criticizes him.
A member of the Reishi Investigation Team informs them that a Quincy is inside the flame. Following this, Izuru orders them to attack. However, before he can act, Izuru is severely injured. Third Seat Rikū Togakushi then commands the remaining Shinigami to use their Shikai to engage the enemy.
Asuka releases his Shikai but is quickly overpowered by the Quincy opponent, who forcefully slams his head into the ground.
(Source: Bleach Wikia)
