Ritsuka and the Servants, after hearing the thunder coming from behind the Walls, go to investigate, finding Eren coming out of a half formed Titan.
Chaldea starts to act in order to discover the nature of Eren and to discover why he can transform into a Titan.
The Chaldeans followed the 3 shortly after they left, arriving to the area where the lighting appeared only to find the semi formed body of a Titan on the ground, crumbling due to not having the full body to keep itself together.
"Da Vinci, are you seeing this?" -
"Yes Ritsuka Kun, that's Eren's doing, but I don't know why did he formed just a portion of the Titan and not the full body" - Da Vinci said while scanning the half formed Titan from Chaldea - "Eren's still inside, get him out of there quick" -
"Got it. Shiki, I'll need your knife" - Ritsuka asked his Servant for her weapon before jumping straight to the Titan.
"Hey, what are you doing!?" - the Captain yelled at Ritsuka, but he was met with no response from the Master as he dug deeper trough the Titan's flesh and bones, pulling Eren out of there.
"Goddamit, if you're going to make a Titan then do a normal one, not just a half assed mess that looks like it might be pulled from a cheap horror movie" - Ritsuka said to Eren while carrying him to the ground.
Lucky for the Master, he was still far from fully conscious and didn't understood anything.
"Ritsuka? What's the matter?" - Mikasa asked while she helped Ritsuka wake up Eren, who was AGAIN unconscious.
"Oh, nothing, we just saw the lighting and... Whatever that thing that Eren did is" - he answered, but in reality he did it in order to get close to Eren so Da Vinci and Holmes could perform a quick analisis using Chaldea's tech.
After laying the boy on the ground with Mikasa and him waking up, the Captain decided to ready the cannons in order to fire against all of them, fearing of what could happen knowing Eren was capable of transforming into a Titan.
"Wait, don't shoot!" - Armin immediatly jumped in front of them.
"He's a Titan, in any moment he could go rouge and kill all of us, I'm not going to take any risks, now move out of the way unless you also wish to die!" - the Captain screamed at Armin.
"He's our greatest weapon against the Titans and you want to kill him!? He could be the miracle we've been waiting for that would turn the tides in favour of humanity!" - Armin defended Eren as best as he could.
"He's right, whether you like it or not, normal soldiers aren't going to cut it against Titans like the Armored or the Colossus, so Eren's power could be our best asset to victory" - Ritsuka also entered the debate in favour of Eren.
"Another one!? You both are supporting a Titan, that makes you all traitors! Ready the cannon!" - filled with fear, the Captain refused to listen to reason, willing to kill 4 innocents.
Just when he was about to shoot, someone stopped him, an old man wearing the same uniform as him.
"That's... Dot Pixis!" - Armin screamed at the sight of the man.
"Who Pixis?" - Ritsuka asked, not really knowing anyone from that world outside of the Cadets.
"He's the Chief of the Southern Territories, that includes Trost, the district in which you found us" - Armin explained to Ritsuka who was that man.
"If that boy can transfrom into a Titan, then maybe we should listen his little friend, he could be of use to us, especially in repairing that hole made in Wall Rose" - Pixis explained the Captain what they could do with Eren.
With no option but to obey his superior, the Captain decided to hand Eren over to them, with Armin and Mikasa following behind. Ritsuka, however, returned with the Servants and went to an isolated place in order to comunicate with Chaldea, hoping they would alredy have something after analizing Eren.
"Yes Ritsuka Kun, we managed to find something in Eren" - a hologram of Da Vinci appeared in front of everyone before showing another one, the second one being Eren's body - "While in the outside he may look like a regular human, there's a strange substance in his body that is what allows him to transfrom into a Titan, but we have yet to find out how does the transformation itself works, nor what makes his Titan different from the rest" -
"You think you could analize that substance by separate and find out how does it work?" - Mash asked Da Vinci.
"We're alredy ahead of you in that regard Mash, Asclepius is using the highest techonology available in Chaldea to examine that fluid based on the data from the analisis, but it's going to be hard without a sample from him" - Sherlock answered Mash's question.
"In that case, I'll try to get some next time we're alone, I just need a syringe to do that" -
"Simple, we'll just send one from Nightingale's supply, I'm sure she wont mind" -
"Alright, send it and I can get to work" -
"Right Ritsuka Kun, and as for the rest of the Servants, at least for the moment you'll work together with the soldiers in order to stop any Titan attacks, we need to gain their trust before we can attempt anything" -
"I'll try to help as well, train with that ODM thing that they used to balance from the houses and such, maybe like that I could be useful, or maybe..." -
"Senpai, what's wrong?" - Mash asked after seeing how Ritsuka suddenly stopped to think.
"If that liquid helps Eren transform into a Titan, and not only that, but retain his thinking and will instead of going full bloodlust, then maybe it could do the same thing to me" -
Everyone fell silent after Ritsuka's declaration before Da Vinci decided to break the awkward silence.
"That, in theory, could be a good idea, but let's wait until after we've run the tests on Eren's blood just to be sure it won't have weird effects on you. If we find out nothing will happen to you, then we can try" -
"Alright then, that works well enough" -
"It's settled then, you may continue with your mission" - Da Vinci said before making a 'goodbye' gesture and cutting comunications with them.
A second later, a syringe dropped at Ritsuka's feets.
"We all have our missions, so I suggest we start working on them right now" - Ritsuka said before grabbing the medical equipment - "It's going to be hard, but I hope I can get something sooner than later" -
"Alright then senpai, we'll be with the rest of the soldiers if you need anything" - Mash said with a smile on her face.
"Very well then, let's start as fast as we can" -