Elma

 Elma (エルマ Eruma) is a female dragon from the Dragon Faction of Order, the enemy faction of Chaos, which Tohru belongs to. She adopts the name Elma Joui (上井 エルマ Jōī Eruma) as her human alias after she finds that she is unable to return to her world without Tohru's help.

She ends up working in the same office as Kobayashi, despite initially lacking the skills to do so.