Gray Fullbuster, Loke, Lucy Heartfilia & Cana Alberona vs. Caprico

Gray Fullbuster, Loke, Lucy Heartfilia &amp; Cana Alberona vs. Caprico is a battle fought between S-Class Candidate Mages of Fairy Tail, Gray Fullbuster and Cana Alberona, their partners, Loke and Lucy Heartfilia, and member of The Seven Kin of Purgatory from Grimoire Heart, Caprico.

Prologue
During the second part of the S-Class Wizard Promotion Trial, Cana and Lucy are looking for grave while Gray and Loke secretly follow them. The group later sees a signal from Erza, announcing that enemies have infiltrated the island. The signal angers Cana but Gray and Loke, revealing themselves, are able to calm her down and the group decides to return to the campsite together. As they make their way to the campsite, they suddenly notice multiple bubbles falling towards them. The bubbles contain Grimoire Heart Guild members who immediately attack the group with their weapons but most are easily defeated. As the group continues to battle the remaining members, the enemies suddenly disappear and Caprico arrives, telling the group the he will be their opponent.

Battle
Gray, Loke, Lucy and Cana are unable to use their magic due to Caprico's fast and powerful physical attacks. Caprico later reveals that they will create the Great World of Magic where all those who does not use Magic will die. After hearing the Dark Guild's plan, the group begins to criticize the said plan. Caprico sympathizes for a moment but decides to continue with the plan. Gray prepares himself to use his Magic and Caprico readies himself to attack as well. However, Loke stops Gray and tells him to go look for the other members of the Seven Kin of Purgatory and leave him to fight Caprico alone. Gray reminds him that they cannot even defeat him when four of them are battling at the same time but Loke reveals that Caprico is using an ancient Magic called Human Subordination that temporarily weakens the physical and magical powers of human, not Celestial Spirits. Loke then reveals that Caprico himself is a Celestial Spirit, Capricorn the Goat. Lucy tries to tell Loke that she will help him but Loke quiets her and challenges Caprico to a one-on-one Spirit battle. Gray and Cana decide to follow Loke's request and pull Lucy with them. Lucy tries to resist but Loke shouts at her to go and Lucy follows. Before leaving, Lucy faces Loke and tells him that he better comeback to her no matter what.

Aftermath
When the battle of the Celestial Spirits finishes, Lucy notices that her keys are glowing and announces that Loke has won his fight and that Caprico will be returning to the Spirit World with him as Lucy's spirit. With Loke's return to the Spirit World, Gray is left without a partner. As the group searches for the members of the Seven Kin of Purgatory, Cana suggests that they split up into two groups. Gray has doubts about the plan but Cana, telling him that she wants to eliminate the enemy as quickly as possible and taunts him for being scared to go alone, is able to get him to agree with her plan.