Sasori

is a Third Generation member of the Knights of the Purple Smoke.

Abilities
Being a pyrokinetic, Sasori can use his Ignition Ability to create a scorpion tail made of flames.

Operation Nether Investigation arc
Upon the Special Fire Force Company 2 and 8 entering the Netherworld and being assaulted by Infernals, Sasori and another White-Clad approaches Tamaki Kotatsu. Engaging in battle with her, Sasori attempts to stab the girl with his blade, but is repelled away by a headbutt from Gustav Honda, who is accompanied by Akitaru Ōbi. Engulfing Company 8's captain in flames, Akitaru emerges unfazed and punches Sasori, leading to him becoming unconscious.

Trivia

 * Like other members of the White-Clad, Sasori's name is in relation to his Ignition Ability.