Long

Long is quiet, battle-hungry, and particularly interested in blood. Her limited dialogue makes her less verbally expressive than Pingtsi or Cosmo.

She is usually shown restrained by wrist cuffs while traveling with Quanxi's group, but this does not prevent her from joining combat immediately when ordered.

Her loyalty is centered on Quanxi and the other Fiends rather than any wider political ideology.

Long can breathe a large stream of fire from her mouth, giving her a ranged attack unusual among the Fiends in Quanxi's group.

She is also physically strong enough to restrain Denji and durable enough to block handgun rounds with her arm.

As a Fiend, Long possesses greater durability and strength than an ordinary human and can potentially recover by consuming blood, but she cannot form contracts with other Devils.

Her underlying Devil concept remains unknown. The commonly proposed identification as a Dragon Fiend is inference rather than established canon.

Long enters Japan with Quanxi during the international assassination mission and helps attack Santa Claus's dolls.

She later grabs Denji while Aldo attempts to intervene. Aldo shoots at her, but Long blocks the bullets and responds by breathing fire.

Beam eventually knocks Long away from Denji, allowing him to escape her hold.

The Hell Devil transports Long and the other combatants into Hell. The Darkness Devil attacks almost immediately and kills Long during the confrontation.

Santa Claus later uses Long's body as one of the dolls intended to make Quanxi hesitate. Public Safety eventually obtains the remains of Quanxi's Fiend companions.

Quanxi is Long's girlfriend and leader.

Pingtsi, Cosmo, and Tsugihagi are Long's fellow Fiends and members of Quanxi's household.

Aldo shoots at Long during the assassination conflict, prompting her to attack him with fire.

Beam knocks Long away from Denji during their fight.

Darkness Devil kills Long after the group is transported into Hell.