The days passed and Nero, Vergil, Dante, and Eren headed with Levi's squad to the old Scout Regiment Headquarters on horseback. Nero sighed heavily and found himself lost in thought, but he had a feeling that someone was watching him. He turned his head and saw Vergil looking at him, causing the young half-devil to look away and speed his horse up a bit. Vergil didn't understand Nero's action as Dante whispered, "Give it time, bro, he'll come around" They arrived at the old castle and Eren and Nero helped with the horses with Oluo and Petra bickering about him talking while on the horse and pretending to be Levi while Eld and Gunther inspecting the castle. Once they were done, Nero looked to see Vergil walking towards them as he said, "Eren Jeager, I want to speak with my son, in private" He nodded his head and walked off as Nero said, "If you're wanting my forgiveness then forget it" "I do not ask for your forgiveness, Nero", Vergil replied, "I merely ask that you understand what happened over the years wasn't my planning" Nero scoffed and said, "Yeah, well, maybe you should've thought more about my mother and I before killing innocent lives all for power" The venom seeping from Nero was enough to make Vergil glance at him coldly as Nero walked off. Eren watched and saw anger coming from Nero when a hand was placed on his shoulder and Dante saying, "Don't worry 'bout it, kid. I don't blame Nero for acting the way he is" "Why would Vergil do the things you said in the courtroom?", Eren asked, making Dante sigh and said, "Ask Verge that yourself. I may have been there when it happened, but what went through his mind is completely different from mine" "If you four are done", Levi said, "We need to get to work"

Oh, how Dante wanted to whine and complain, but he had to. Levi ordered everyone to clean the castle considering how long it was abandoned, so Dante really couldn't complain. Levi walked past Nero cleaning the floors and said to the young half-devil, "Nice work, Nero" "Thanks", he replied as he wiped the sweat from his forehead, "If I may ask, Captain, where is Eren going to sleep?" "Eren will have to sleep in the dungeon", Levi explained, "It is a security measure. He may go Titan in his sleep. As for you, your father, and uncle, you will have a room to your own" Nero sighed as Levi said, "Go help Eren with his section" Nero did so and as he walked on, he noticed Vergil walking towards him, causing Nero to look anywhere else besides the half-devil. Vergil walked past Nero and could feel the anger coming off of Nero, causing him to look back at the young half-devil and shake his head, remembering what Dante said. The day went on and Vergil helped Petra gather some firewood when Petra said, "Are you alright, Vergil? You look a bit distracted" "I am fine", Vergil said, "I do not get distracted" "If it's about Nero, it'll be fine", Petra said, "I'm sure he'll accept you as a father eventually" "Woman", Vergil growled, "do not speak of what you do not know" "If you're gonna take your anger out on something", Levi's voice said, causing Vergil to glare at the man, "don't take it out on my men" Vergil merely narrowed his eyes as Levi said, "Petra, go cook some food for dinner. Vergil, the Commander wants to see you. Follow me"

Vergil followed Levi to a room where Erwin was sitting down with Mike standing, looking out a window. Vergil looked and saw a paper on the table with what Vergil guessed a formation as Erwin said, "Thanks for coming, Vergil. Please sit" Vergil sat beside Erwin as the half-devil asked, "Is there a reason for my presence here?" "Yes", Erwin said, "I feel you should help with the strategy for the operation to reclaim Wall Maria for humanity. No offense to your brother and son, but you seem more worthy of this" "There is none, Commander", Vergil said, "I believe my brother and son will understand your decision" Erwin nodded his head and began, "Now, to begin, the Scout Regiment is a cadet's last resort for our purpose is to gather intelligence on the Titans and their behaviors. Which means we leave the walls to make our expeditions, but we lose too many members of this regiment" Vergil nodded his head in understanding as Erwin continued, "However, with your arrivals, I believe humanity has a chance against the Titans" "What do you propose, Commander?", Vergil asked. "I want you with Zoe to learn your demon ability and how it affects the Titans", Erwin said, "As for your reason here, in one month, the Scouts are planning a expedition to Wall Maria to seal the breach in the Shiganshina District, and with the newfound information from Eren Jeager, return to his home in that district and maybe learn the secrets of the Titans" "From the reports I was able to read", Vergil said as he looked at the formation on the table, "the Titans are coming from the south and heading north. Trost was the easiest way of getting to Wall Maria, but with the attack that recently happened, you will need to use an alternative route to get to Shiganshina, am I correct?" Erwin and Mike looked at Vergil when Erwin smiled and said, "You seem to have a very sharp sense of analysis, Vergil. It looks like I've made an excellent choice"

Night had fallen at the castle, and Vergil and Levi had returned as everyone began to eat. They spoke of a few things, but what made Nero uncomfortable was the fact Vergil was sitting next to him. "So", Oluo said, "how is it that the Titans can be killed so easily by you three?" Vergil sipped his tea and said, "I believe it is our demonic blood that courses through our veins. Like Jeager's Titan ability, it is within our genetics that makes us able to kill the Titans without the use of your 3-D Maneuver Gear" Everyone was silent when Dante said, "That maybe a reason, Verge, but we're also still human and the kid's a quarter of a demon. It maybe also be our Devil Arms" "What are Devil Arms?", Eren asked. "Devil Arms are weapons that a demon once wielded or its soul", Vergil explained, "For example, Dante's Rebellion and my Yamato are Devil Arms used by our father, Sparda. The way the demon, for lack of a better term is hierarchy, is that when a demon is defeated, it will be owned by the one who has defeated them, but some would rather die than become owned by another demon" 'That's a demon's way of battling, then', Eren thought before saying, "Yeah, I remember you saying during the trial that you were a slave to the demon king, Vergil" Vergil merely closed his eyes and his silver brows furrowed as Eren realized he accidently plucked a string while quickly saying, "Er, sorry, Vergil. I didn't mean to offend you if I did" "It is alright, Eren", Vergil replied, eyes still closed, "but do not speak of that scum in front of me" Eren and the other Scouts besides Levi nodded their heads. "Now that that's out of the way", Eld, the blonde member said, "Tell us how this Titan change works" Eren took a deep breath and said, "To be honest, I don't really remember how it works, but it's like I'm in a trance and it seems to trigger by hurting myself, like biting my hand" Vergil noticed Eren seemed to remember that much, which means he was telling the truth, and by looking at his eyes, the half-devil saw shock in Eren's eyes, meaning even he was surprised by what he had just said.

Nero saw Eren's reaction as well and remembered the first few times he triggered. Dante had told him that those times, his Devil Trigger was triggered based on his emotion, like his anger. Eren's Titan ability was similar in a way like that but it wasn't as easy of getting Eren out of it like a Devil Trigger. "Either way", Levi said taking a quick drink from his tea, "we're not going to get anything out of him. Not that you know who will take a crack out of it. You'll be lucky to come out alive" "And who are we talking about?", Dante asked. As if on cue, a loud thud was heard and the sound of someone yelping in pain was heard, causing Eren, Nero, and Dante to jump up from their seats out of being startled by the noise. Petra opened the door to reveal Zoe rubbing her head and said in her cheerful tone, "Gooood evening, Team Levi! How's castle life for everyone?" "You're early", Levi said taking another drink from his tea. "Well", Zoe said, "I just couldn't help myself" "Section Commander Hange?", Eren and Nero said in unison as Dante thought, 'Damn, this chick's gotta be worse then that Agnus guy' "Hello Eren, Nero, Dante, Vergil. If you four haven't learned, I am the head of the research division of the Scouts, which means I take apart our Titan captives. I want yours and Vergil's help" "Our help?", Eren asked with confusion, "I may be able to understand asking Vergil for help, but me? Besides, it's not my call, I'm under strict rules from the higher-ups" "Levi", Zoe asked, "what's the to-do list for Eren and Vergil?" "Eren is going to remove some weeds while Vergil helps with gathering firewood", Levi answered. "Excellent", Zoe said, grasping Eren's hand, "Young man, tomorrow will be grand"

Everyone but Levi and Vergil sweatpanned at Zoe while Eren asked, "Um, ok. What is that I'll be doing? Are you…going to run experiments?" "Idiot", Oluo muttered, "Shut up" Zoe's eyes were filled with wonder as Levi's team, Dante, and Nero left the three in the mess hall.

Dante walked beside Nero and said, "Man, what a day. In another place, dealing with man-eating creatures besides demons, my brother still alive after all these years" Nero stopped suddenly, making Dante look to him and realize his mistake. "So", Nero said with his bangs covering his eyes, "you, me, and your brother…we're a family?" "Yeah", Dante sighed, "I had my speculations 'bout Verge being your dad. Of course, I knew I wasn't your old man. I may not play by the rules, but that doesn't mean I'm not careful" Nero chuckled a bit at Dante's statement as he looked to the elder Devil Hunter and said, "Well, at least you were a better fatherly figure then he was" Dante smirked and said, "Come on, let's go to bed, kid" Nero let out a slightly loud yawn as he walked on to his room when Dante said, "Kid, if you need me, I'll be in the next room" Nero said his goodnight to Dante and closed the door before the elder Devil Hunter walked outside to see Petra checking the horses. "Hey there, babe", Dante said, gaining Petra's attention, "Whatcha doin' out here this late?" "Checking the horses", Petra said. Everything was silent until Petra asked, "I know it's probably not any of my business, but, do you think Nero will accept Vergil?" Dante took a deep breath and said, "It's up for the kid to decide. To be honest, our childhood wasn't always rainbows and butterflies with our heritage. Our old man, Sparda left us when Vergil and I were young and of course, our mother was killed and we took different paths" Petra sighed and asked, "Do you have any children of your own back where you come from?" Dante chuckled at her question and said, "Not by blood, but I consider this one girl like my own daughter. Her name is Patty, but even though most days she could get very annoying, she had a good heart. I took care of her until her mother came back into the picture for Patty. As for siblings, Lady can be the older sister and younger sister. Trish, she kinda acts like she's my mother, but we both know she's not the maternal type" Petra giggled when Dante spoke about Patty and said, "Well, they seem like nice people. Well, it's best we get some sleep" Dante nodded his head and alked to his room which was across from Vergil's room; he took off his coat, shirt, and boots before falling onto the bed and letting sleep take over.

The morning came and Zoe, Vergil, and Eren, who didn't get a wink of sleep at all, were still at the hall. "Listen to me ramble on", Zoe said as Dante and Nero walked in, "I'm sure you've learned this in training, have you?" "How long have you guys been here, bro?", Dante asked Vergil in a whisper. "All night", Vergil said as his eyes began to drop, signifying he was about to fall asleep, but considering he was up for a long time, it didn't surprise Dante his older twin needed sleep when the door was pushed open and a soldier shouted, "Section Commander Hange! The test subjects…they're dead! Both killed!" Everyone at the castle got on a horse and hurried to the test subjects. Upon arriving, the Titans were nothing but skeletons as Zoe screamed and cried, "AHHHHH! SAWNEY! BEAN! HOW COULD THIS HAVE HAPPENED?! SOMEONE TELL ME THIS IS A DREAM!" Eren, Nero, Dante, and Vergil wore cloaks with hoods over them to help conceal their identity as they over heard a soldier say, "They were killed recently. By the time the guards got here, the bastard left on 3-D Maneuver Gear. Plus, the guards say they saw a creature scurrying up the walls, with some calling it a demon" "Dante", Eren said, "could this be the work of a human controlling demons?" "It's quite likely", Vergil answered first, "However, it's not always the case" Vergil turned to go back to his horse as Dante muttered, "Definitely starting be like we're dealing with The Order again" Nero and Eren watched Zoe continue to scream and cry when a heavy hand was placed on Eren's shoulder. They both looked to see Erwin standing between them and he said, "Look closely you two. Who do you think the real enemy is here?" Eren was confused by the Commander's question when Erwin told Eren and Nero to forget about the question and walked off.

Later the day, Vergil stormed into Erwin's office and said, "You know something, do you?" "I have no idea-", Erwin began, but was cut off by Vergil who said, "Don't play me a fool, human. You know whoever did this to Sawney and Bean was either human or demon" Erwin looked up to Vergil and said, "Yes, the one responsible was either human or demon, but this is in the hands of the Military Police now" Vergil kept his cold stare as he said, "I heard what you said to Jeager and Nero" Erwin just stayed stoic as he stared at Vergil and said, "Sharp as ever, Vergil. You never cease to amaze" Vergil took it as a compliment but what caught him off guard was Erwin saying, "I have a little request for you and only you can do this" Vergil narrowed his eyes as he asked, "A request?"

Author's note:

Ok, so we don't know why the Titans fall so quickly to the three devils and that someone or something killed the captured Titans. As for the request, what has Erwin asked Vergil to do? The next chapter will be out soon

Please R&R