Nina

Nina (ニーナ), a member of God Tribe, she was worshipped as a deity in her homeland until Edgar Fromware captured her and forced her to put on a slave collar by threatening children from her village. After being saved by Rein Shroud, she became his fifth contractual.

Appearance
Nina looks like a child with fox features, including fox ears and three fox tails. She usually wears her traditional dress.

Personality
Nina is a gracious person; for instance, for the sake of people, she accepts being enslaved by Edgar. After getting enslaved by Edgar, she resisted his lashings and never stopped longing for someone to help her. When Rein came to her rescue, she was initially scared because of her trauma, but Rein's kindness touched her. She always thinks of others' well-being no matter how much horrible a situation she is in. As Rein breaks her collar to terminate her contract with Edgar, which makes Rein feel severe pain, Nina shows a melancholy nature and says he should stop it as no one will be sad if she dies. But Rein refuses this, replying he'll be sad. This causes her to trust Rein fully; surprisingly, she finds his recklessness a unique trait.

Background
Nina lived in a shrine deep in the mountains, hailed as a "goddess", She was glorified by the neighboring villagers. She lived a peaceful life until Edgar heard the rumour about her and enslaved her using a magic collar. Since then, she has had to face violence and torture from Edgar. Rein freed her and, in the process, became his fifth contractual.

Abilities
As a member of the god tribe, Nina's abilities are regarded as out of the world. Though she's still an child who can't completely wield the true powers of the god tribe, Nina still has incomparable powers, making her one of the strongest characters of the series. Rein has once stated that she can make the impossible possible.
 * Divine Protection (神の加護): A defensive ability that allows Nina to create an invisible shield. She manifests the shield when she senses danger. The shield is too strong to be broken until Nina herself nullifies it.
 * Instant Transmission (瞬間転移): Making use of space magic, she can instantly move from one place to another. She can even transfer her targets to different locations. Nina can also chain her teleportations so that she along with whoever she is teleporting with appear to be flying in the sky as seen with Rein when she chained her teleportations to keep them in the air when they were fighting the demon in horizon.
 * Awakening: In her awakened state Nina temporarily grows up into an adult and gains an increase in abilities to the point were she able to transition portals all at once. After training with her mother Nokia she able to awaken whenever she wanted but could only be in this state for a few minutes

Trivia

 * Nina is so adorable that all her fellow Contractuals can't resist cuddling her. It also helps that Nina knows she's loved.