Ingvild Ryggen Leviathan

Ingvild Ryggen Leviathan is one of the descendants of the original Leviathan and the possessor of the Longinus Nereid Kyrie. She eventually becomes the Pawn of Arthur Pendragon's peerage.

Appearance
Ingvild is a beautiful young woman with long blackish-purple hair and has orange eyes, with her appearing in her late teens and she wears a white noble dress.

After joining Arthur peerage and becoming a student at Kuoh Ryu Academy, Ingvild now wears a female school uniform.

Personality
Ingvild is a kind and friendly person and enjoys singing as is shown when she sings at the fountain and for Arthur and his group. Ingvild is also shown to love seeing the ocean and going on beaches with her friends. Unlike her fellow members of the Leviathan clan or any other descendants of the original Satans and akin to her great uncle Dredge, Railane, Percival and his siblings, she doesn’t have an evil heart and doesn’t wish to rule Hell. She also appears to be quiet, shy and soft-hearted.

History
Ingvild was born as a child to both a human and a devil from the Leviathan clan and was living in the human world in the seaside city in Europe. At some point in the past, she ended up with a devil disease that made her enter into a deep sleep and so Ingvild was sent to the underworld in an attempt to cure her of the disease. Because of this, she continued to sleep for a hundred years. She was then woken up due to her Longinus Nereid Kyrie beginning to take its form.

Powers & Abilities
Immense Demonic Power: As a Devil who is a descendant of the original Leviathan, Ingvild possesses an impressive amount of demonic power and has all the common skills and powers of one. Ingvild has the ability to teleport as she subconsciously teleported to the park in Tokyo. According to Waltraute's measures, the amount of aura Ingvild posses is equal to a Satan-class Devil or even higher. With her massive Demonic Power, she’s capable of summoning up to ten, thirty meters water dragons. Promotion: Being a Pawn, Ingilvd can use the promotion to temporarily gain the traits of a Queen, Rook, Knight or Bishop.
 * Seawater Serpent Tail of the End (掉尾の海水蛇龍尾, Tōbi no kaisuihebi tatsuo): As a descendant of the Leviathan Clan, Ingvild has the ability to control the sea and draw large amounts of water. At full power, she's capable of summoning floods, drown whole cities and create a snake-shaped Dragon made of water.

Magic Expert: Her demonic power is enhanced. Waltraute describes Ingvild as a genius as she's managed to show knowledge with elemental magic.

Stealth Expert: Ingvild is shown to disappear without leaving a single trace, as Arthur didn’t felt her presence leave.

Flight: Being a half-Devil, Ingvild can fly using her 8 wings.

Equipment
Nereid Kyrie : Ingvild's High-tier Longinus with the ability to manipulate Dragons and the Sea. Currently, Ingvild's power to control Dragons is stronger while her power to control the sea is improving.

It can be used to enslave Dragons to the possessor's will as well as weakening them or strengthening them. It is shown to be powerful enough to dispel the armor of Arthur Pendragon who was wearing his Crimson Armor, with Ddraig stating that it could potentially even affect Arthur in his Diabolos Dragon Beast: Lilith armor. Bonnibell Belial stated that the power of this Longinus could potentially control the Dragon Gods (Scarlet Grand, Ophis and Wagyl).

It is stated that the power to control the sea could potentially allow the user to control the entire ocean to sink a urban area and potentially an entire country. According to Ariel Lucifer, the Longinus could potentially be turned into a Sub-Species which can also control lakes as well.

As a High-tier Longinus, it has the potential to destroy the world.
 * Breast Song Reinforcement:

Trivia

 * Ingvild is named after the famous Norwegian actress with the same first name.
 * The name Ingvild is a combination of "dedicated to the god Yngvi" or "dedicated to the ancestors", with "battle".