Serafall Leviathan

Serafall Leviathan, formerly known as Serafore Sitri, is the current Satan with the title of "Leviathan" and Sona's older sister.

Personality
Serafall has a child like personality.

Birth of the Breast Dragon Emperor
Serafall appears in Volume 4 during the class observation day of the Kuoh Academy to see her sister, claiming that she nearly attacked the Heavens out of shock of not being informed about the class obersvation. She and Sirzechs later attend the the meeting between the leaders of the three factions which was attacked by the Chaos Brigade.

In Volume 5, she and the other Satans gather during the opening ceremony for the Young Devils Gathering and was unhappy at the fact that the elders of the noble family made fun of his sister.

Powers & Abilities
Serafall specializes in using Ice-based magic. Being a Satan, Serafall is a powerful Devil, shown when she froze up an entire region of the Underworld along with the Monsters created by Annihilation Maker with ease.

Trivia

 * Serafall has her own TV show in the Underworld called "Magical☆Levia-tan" (ミラクル☆レヴィアたん Majikaru☆Revia-tan).