When Erza says that she and Gray will have to go alone, Gray doesn’t like the idea but goes along with it
When Michelle Lobster arrives at the guild, she asks if she can come on their mission, and Gray agrees by saying that he doesn’t mind. Then, Erza appears while driving a wagon and Gray says that her driving is not safe. When Erza’s plan is to be put into action, Gray asks what the plan is, and Erza explains that they will pull a sneak attack, using Michelle and Lucy as bait. When the bandits go to get the cargo, Gray and the others start attacking until they are defeated. When the Magic Council arrives to arrest the bandits, Gray says that even though they make a lot of racket, it is never a dull day. Back at the guild, he listens as Natsu and Lucy discuss putting the memento mystery up as a job. He then watches as the key levitates and ancient letters start appearing on it. 
They corner the bandits until the criminals bring out the Vanish Brothers, whom they have hired to protect them
A little while after Michelle’s arrival, Gray and Erza ask Lucy to go on a job with them to defeat a group of bandits, but Lucy refuses. When they reach the bandits hideout, Gray comments that they should attack in daylight. As the two have to wait, silence falls, and Gray thinks that it is awkward when he is alone with Erza, until Erza tries to break the silence by asking him why isn’t he stripping, which completely shocks him. Silence falls again and Erza tells him to go to bed, much to the dismay of Juvia, who has been stalking the duo. While Erza sleeps payday loans in Maine, Gray notes she looks better when she is calm, until she wakes up and says that the bandits have returned to their base. Gray remembers that Natsu has defeated them once, and wants to defeat them by himself too. For a while, they overpower him until he uses Ice Bringer and defeats them. 
He breaks that bondage between the two with Ice-Make: Ice Cannon. Afterwards, he is somewhat confused that Sugarboy would be in Earth Land until Happy clarifies that the man is the Earth Land version of the Sugarboy he knew. 
Gray listens as Makarov discusses the events that have happened so far. He asks about the people who went in pursuit of the thieves, but Erza says that Warren lost track of them. Then, he plans with Natsu to get the Legion Corps back for stealing Lucy’s memento. Later, he arrives the Heartfilia Konzern Mansion with the rest of Team Natsu, Wendy and Carla to search for clues surrounding the memento. He goes with the others to search the bottom floors of the house while Lucy and Michelle search the attic. He is then seen trying to clue Lucy found with Erza, Lucy, Michelle, Wendy and Carla, until Natsu arrives and sneezes on the papers. Gray listens as Carla points out the word “myth” in the letters, and the words “duo” and “great,” but as they continue to think, they are approached by Dan and Samuel. Gray, with Erza and Natsu, tries to attack Samuel, but all of the attacks are blocked by Dan, with the mansion taking damage from their attacks. Gray watches awestruck as Dan falls in love with Lucy and as he starts ranting about how beautiful Lucy is. Gray, alongside Wendy, attacks but nearly gets crushed by the roof collapsing above them. Though they try desperately to get the intruders, the mysterious duo complete their mission and escape.