I wanted to post this yesterday, but I fell asleep when I was going to watch this episode XD
Well, here you are~
As Erza is looking for a way to return to her original form, she is approached by none other than Minerva. Meanwhile, Natsu soon meets Doriate and his magic, turning him into a child as well.
Summary :

At the Sun Village,
Erza still wonders why she turned into a child and takes off the rest of her armor. As she starts walking, she slips onto ice and rolls down the mountain formation, figuring out she can't control her movements the way she wants to. She then starts wondering how would the others think of her, adding to her desire to go back to her normal form even more.
(I laugh so hard at this XD)

Meanwhile,
Hunters and
Mages are still fighting, with
Natsu expressing his impression about the
Hunters' strength even without the use of magic. As a reply,
Hiroshi points out
Sylph Labyrinth's victory at
Grand Secret Treasure Games, with the
Mages not knowing such thing existed.
As Hiroshi finishes his speech, Gray reveals he's taken the Moon Drip bottle with Ice-Make: Thieving Hand, shocking Hunters in the process. In order to get the bottle back, Hiroshi orders Drake to shoot, only to fail as Sagittarius breaks the incoming bullet with an arrow. After his comrade's failed attempt, Hiroshi himself starts attacking with his Chain Blade but Gray dodges the attack and throws the bottle to Natsu, who soon gets attacked by Lala's Stronger but successfully evades the attack and then passes the bottle to Lucy. Being enraged, Hiroshi attacks with Chain Blade once more, but this time in its Gunner Mode. Successfully dodging the bullets, Lucy passes the bottle to Wendy so Hiroshi starts focusing his fire on her, with Lala supporting him. Briefly after, Wendy successfully gives the bottle to Carla, all the while dodging the shots coming her way. Finally, Carla throws the bottle to Happy, who fails to catch it and thus the bottle ends up being broken instead, shocking everyone in the process.

With the
Hunters crying about the loss,
Happy apologizes to the team but it turns out that the spilled
Moon Drip can't melt the entire ice in the first place and thus wouldn't have been able to save the village and its residents. As
Natsu approaches him,
Happy thinks he will punish him but the former rather approaches the melted ice, thinking he heard something. By putting his ear on the melted part of the ice,
Natsu states he hears someone's voice below it. After such statement,
Natsu starts running in one direction, with the others starting to follow him. As
Natsu is running,
Doriate gets in his way, with the former thinking he's another
Hunter. As his suspicions are proven to be false,
Natsu gets turned into a child by the latter's unknown magic.
(Look at how cute Natsu is XD)

Back at
Erza's location,
Erza tries to
requip but barely succeeds on doing so, realizing that even her
Requip speed as well as her stamina got significantly lower. She then gets approached by
Minerva, with
Erza wondering what happened to her and expressing her worry about her. As
Minerva tells her she changed guilds,
Erza notices her
guild's emblem, figuring out she's a
Dark Mage of the
Succubus Eye Guild. At the same time,
Doriate also reveals himself to
Natsu as a
Dark Mage.
Back to her, Minerva tells Erza she doesn't care about the guild she belongs to as long as she has a view from the strong world, with Erza putting in question her pride as a Mage. Having no regrets, Minerva desires to have a rematch, obviously having an unfair advantage. Erza accuses her for turning her into a child but Minerva clears her suspicions by saying that Doriate is the one to do such thing. In the meantime, Doriate starts attacking Natsu, who responds with Fire Dragon's Roar but ends up producing a rather insignificant amount of fire. As he states he was able to produce a much larger quantity even at a young age, Doriate reveals it being one of the effects of his Magic, the Law of Retrogression. Natsu tries using magic once more but ends being punched by Doriate and sent rolling on floor, receiving much more damage in the aftermath. In order to escape and continue his search for the familiar voice, Natsu tricks Doriate, giving him more than enough time for his plan. Infuriated, Doriate takes off his bandana and starts chasing the latter.

Meanwhile,
Lucy and
Wendy are still following
Natsu's tracks, with
Wendy slipping and falling. Now having no idea where they are, they end up being followed by
Hiroshi and
Lala, poorly disguised as
Happy and
Carla, who went to search for
Natsu earlier. After
Lucy blows the
Hunters' disguise,
Wendy apologizes in the name of the group for the incident earlier and states the team's desire of saving the giants instead of fighting with them. Not caring about them,
Hiroshi starts breaking the ice from one of the frozen giants, angering
Wendy and
Lucy in the process. As
Wendy tells them to attack her and
Lucy instead, they listen to her so
Drake starts shooting at them. As
Wendy falls and thus gives an opportunity for
Drake to shoot at her,
Flare comes just in time to save her, telling them they are now equal in number. Back to
Erza,
Minerva tells her to prepare to fight, all the while
Gray is looking for
Natsu, who is running from the now enraged
Doriate.