Fairy Tail Wiki:Relación Seis/Thunder Gods

Lucy Heartfilia
While attracted to her from their very first meeting, Loke was initially suspicious of Lucy Heartfilia, the newest member of Fairy Tail, due to her usage of Celestial Spirit Magic. However, Lucy was the one who saved Loke from certain death, begging the Celestial Spirit King to forget about the man's past "sin", Karen Lilica's death, and let him recover again in the Celestial Spirit World, and putting her life on the line as she did so. As Loke finally returned to his world to get some rest after three exhausting years in Earth Land, he entrusted Lucy with his key, becoming one of her Celestial Spirits and acknowledging her not only as his friend, but also as his owner.

Loke has since become one of Lucy's most trusted Spirits, coming to his owner's aid even when she doesn't summon him, as shown during Lucy's battle with Bickslow, when he saved her from his Baryon Formation by appearing and rescuing her seconds before she was hit. The Celestial Spirit often claims to be in "love" with Lucy, at the same time stating that seeing her hurt is something he can't forgive. Despite this great loyalty and dedication to Lucy, Loke is not above taking time off with or without his owner's consent, temporarily nullifying their contract during the X784'S-Class Mage Promotion Trial to be Gray Fullbuster's partner as he had promised, much to Lucy's comedic dismay and idnignation.

While Lucy doesn't seem to return Loke's "love", insisting that they're not a couple and reacting with embarassment every time someone jokingly refers to them as such (this "someone" usually being Happy), the girl is greatly attached to her Celestial Spirit, and has the utmost trust in his abilities, as shown during their confrontation with Bickslow and when she encouraged him to return to her after defeating Zoldeo, sure that Loke would have won.

Aries
Loke and his fellow Celestial Spirit, Aries, are close friends. It was Loke who stood up to protect Aries from their former owner Karen Lilica, who mistreated the female Spirit, considering her an object. He switched places with his friend just as Karen readied to torture her by keeping her in Earth Land for too long, and demanded Karen to release their contracts and then left, blackmailing Karen with the impossibility to summon more Celestial Spirits while he remained in Earth Land with his own Magic Power. He was unwilling to let the abuses on Aries continue, even if that took a great toll on him.

When Aries was summoned by Angel during the battle against Oración Seis, Loke was reluctantly forced to fight her, despite Lucy wanting to spare him of this. In such instance, the two of them clashed claiming that it is the pride of a Celestial Spirit to fight for its owner, no matter what it might owe to the enemy it's fighting. When the battle met a sudden end at Angel's hands, Loke and Aries reached their hands out to one another, with Aries rejoicing in the fact that Loke had found himself a "great owner" like Lucy.

Loke
Loke and Gray are friends, having been guild mates for three years and even shared a fear of Erza at one time. Gray also trusts Loke to the point that he would ask him to be his partner for his first S-Class Wizard Promotion Trial. Not much else is known about their relationship, though the two were shown to be happy to see each other when Gray and the others returned from their seven years absence.

Alzack Connell
Alzack Connell is a Mage of Fairy Tail and guildmate of Loke. When Alzack told Loke about his feeling for Bisca, Loke amusingly answered that if Alzack did not express his love to Bisca soon, then, Loke would. From that day on, Alzack sees Loke as his love rival.

Erza Scarlet
At one point of his life, Loke, whilst a Mage of the Fairy Tail Guild, had the courage to ask out the strongest female Mage within Fairy Tail, Erza Scarlet. However, as stated by Mirajane Strauss, one of Loke's guild mate, he almost got himself killed for hitting on her on various occasions. Just like most of the Mages in the guild, Loke respects Erza and acknowledges her bravery and devotion to the guild as an S-class Mage. When Erza protects the guild from one of Jose Porla's attack, Loke, alongside the Fairy Tail Mages, fights on her behalf.

Karen Lilica
Karen Lilica was a famed Mage of Blue Pegasus and the former master of Leo. Karen was cruel and merciless towards her Celestial Spirits and used them a mere tools even though Bob, Master of Blue Pegasus warned. Karen thought that it was Aries who told Bob about her attitude towards her and decided to punish her by bounding he to the Human World for seven whole days.

However, Leo switches place with Aries to protect from Karen's punishments. Loke demands Karen to terminate his and Aries' contract due to her attitude towards her spirits. Karen tries to close Loke's gate but fails;Loke has come here on his own accordance and won't leave, preventing Karen to summons more spirits. Loke leaves to wait in the nearby village ruins and tells Karen to meet him there when she comes back to her senses.

After almost ten days, Loke is growing weaker with Karen telling him to return to the Celestial Spirit World. But Loke is adamant, he won't until Karen frees him and Aries but again, Karen refuses. After nearly a month, Loke is even more enervated and Karen tells that she cannot take any jobs and that she will not repeat her atrocities anymore. But Loke sees through her lies, refusing to leave and Karen beats him. Three months have passed and Loke is now more used to the Human World being in a better shape. As Loke decides to forgive Karen, he learns that Karen has died on a job as she was unable to summon another spirit and died by the hands of an Oración Seis Mage, Angel taking away Aries' key. From that day on Loke blames himself for the death of her Master and this thought haunts him wherever he goes.

Years later, Loke is seen having joined Fairy Tail as he is unable to return to the Celestial Spirit World due to him he "killing" her Master. In his final moments, as Loke vanishes due to lack of vitality, he goes to Karen's grave. However, Lucy Heartfilia her comrade succeeds to convince the Celestial Spirit King that Loke did not literally killed Karen and did so to protect Aries, as a result, Loke is allowed to return to the Celestial World again. A vision of Karen appears to Loke when he is forgiven by the Celestial Spirit King for indirectly causing her death. The image smiles to Loke before vanishing, indicating that following her death, she had finally learned the lesson Loke was trying to teach her;to love and respect her Celestial Spirits.

Celestial Spirit King
During the time Loke's key was still owned by Karen Lilica, he and the Celestial Spirit King had a genuine relationship. After he was banned from the Celestial Spirit World by the Celestial Spirit King himself, for committing the greatest crime a Celestial Spirit can commit, he walked the path of a human. When he and the Celestial Spirit King come face to face with one another for the first time in three long years, the King calls him an old friend but denies him the entrance to the spirit world. However, that soon changes, with the help of Lucy Heartfilia the Celestial Spirit King allows Loke to enter the world of the spirits to regain his lost energy. Ever since, Loke and the Celestial Spirit King treat one another like the friends they once were.