While everyone else are in the Beanbean Kingdom...
(Trails in the Sky SC ost - Conspiracy)
Somewhere in Adrestia Empire. There was a young boy sitting on a roof of the Imperial Palace in Enbarr.
"Hmm... My, my. This world is filled with corruption. Crests, the nobility, and even the so-called Church of Seiros. So this is what it feels like to be in the medical world. Not much on technology. I suppose just swords and magic. Well, it doesn't make a difference for Zemuria that's for sure. Or any other worlds as well. Either way, the info on Fodlan is solid. I got the information I needed. Now." The boy said as he got up. "It's time to punish those bastards for their crimes. And also do a little digging for doing some people a favor." He said as he put on a mask that hide his eyes and face but not his lips, and then hood to cover his hair as he smirked. Who should I strike, first? Oh I already know who." He said as he teleported away.
In Aegir Territory...
The young boy reappeared on the roof of the house nearby the Mansion of Aegir family. The boy swipe his finger in the air and then a small water portal appeared. He place his arms in the portal and then bring out two twin swords. The designs for the swords are steel blades with golden handles.
'Although it pains me to take innocent loves to those who serve Aegir... I must make sure there are no witnesses.' He thought and then he leap over to the Aegir Mansion and see the garden. Next he pulled out a device and then toss it in the air and created a large invisible force field all over Aegir Mansion. The next then that happen is he snap his fingers and then appeared were two fish made out of water.
"Kill the gatekeepers if they tried to flee to get help." He said and the water fish advance towards the gatekeepers from behind. Next the young man jump into the garden and landed on the stairs. Walk to the door and then kick it open on purpose it seems.
"H-Hey, who are you?!" A butler exclaimed.
Then the boy warp behind him and cut off his head. Soon those who witness it screamed but then the boy warp towards the witnesses and then kill them by cutting off their heads. As blood spilled the room. The boy snap his fingers and appeared are water fish, crabs, and jellyfish.
"Kill all the soldiers, staffs and relatives. Make sure no one escape. If you find Duke Aegir, let me know and trap him." The boy command as they split up. As the boy walk up the stairs in the mansion. He hears screaming from below and countless stabs. Many soldiers, staff and relatives who are in the mansions were soon killed with no hesitation. Soon those who upstairs came out were soldiers who soon meet their end by the mysterious youth. Soon he summoned more water creatures and commanded them to explore the rooms for any nobles or staff who are hiding and slaughter them.
"Don't you just stand there you fool! Do something!" A voice shout out in one of the rooms.
"Yes, your grace, I-" Then the boy barge in. "Wha-!?" Then the boy killed the soldier.
"Aaah!" The fat mat with orange hair and mustache panicked as he fell on the ground.
"Are you the one who is Duke Aegir?" The boy asked.
"N-No! You got the wrong person!"
"Wrong answer." The boy said as he stab Duke Aegir's legs.
"AAAAAH!" He screamed in pained as he covered his leg.
"You really think you can fool me, Duke Aegir?" The boy asked as he stab the stomach next.
"AAAAAH! SOMEONE HELP!" Duke Aegir screamed in agony.
"Oh shut up. Even if someone comes, they'll be killed instantly." The boy said with an amusing smirke don his face.
"Who are you? Who hired you! I'll pay you twice the amount-!" Duke Argir beg for his leg by bridging the boy but only to get kick in the face.
"You really think you can bride me? You? A disgusting pig who not only stole power from the emperor? Abuse his power? Consumed by greed, thinking he's a man who is destined to have wealth and glory? Sloth and Greed are sins. I know what you done Ludwig von Aegir. You deserve nothing but pain and suffering. Your crimes will never be forgiven." The boy then stab Duke Aegir ad his shoulder, then cut off his arms and legs as he screamed in agonizing pain. "You will pay in hell where you belong. Be damn to the further reaches of hell. I will destroy everything you build. Now die." Then the boy cut off Ludwig's head. As Duke Aegir's head was rolled. He approached the head and then he stabs the eyes with his sword and stab the mouth next. He summoned a water shark next. "Dispose of it." The water sharps open their jaws and then tear the corpse of Duke Aegir. The boy walk at the desk and then begin to investigate and look around. Soon he found some documents with corrupted nobles and about Those Who Slither In The Dark. "Ah, those detestable Argathans. I'll be sure to kill them." He said and then he begin to set up bombs in the room, next he did the same to different rooms he deem suitable. As he walk around, there was a file of corpses of all the soldiers of Duke Aegir. Including the staffs and relatives. "How fortunate to found more corrupted nobility to purged. Next shall be Arundel. I got all I need. And no witnesses. And the gatekeepers are dead we well. Without anyone noticing it." The boy smirked as he teleported away.
Near Arundel Mansion...
The young boy appeared on the room of the mansion and did the same thing with the formal Duke Aegir mansion by tossing the device into a largely invisible barrier.
'Hmm... this mansion. I can feel magic is involved here. Dark Magic at that. Still, if what the reports tells me is true... Then I should prepare and make sure they don't escape.' The boy thought and then he begin to snap his fingers and several small water fish are form. "Make sure you don't let anyone alive."
The Small fishes then spread out through the mansion as the boy waited for a moment and then he went through the door. Only to find dead white skin humans corpses.
'Hmm... it appears the reports are right.'
"Thales! We have an intruder in the mansion!" An Agathan soldier reported to Arundel who is with a Dark Bishop.
"What? How did they get in? Doesn't matter, kill them." Arundel said.
"That was already plan, but this assassin is-" But then his head was cut off by the mysterious youth.
"Wha-!" The Dark Bishop exclaimed as he was going to attack the assassin but the assassin already slices him into pieces.
"Volkhard von Arundel. You too communicated several crimes. Ready to die?" The boy asked
"A child is an assassin? Interesting. Who sent you?" Arundel said as he surrounded by dark aura.
"I can assure you, no one. Just my own accord. Now die." The boy smirked and then he zoom to Arundel and strike. But Arundel use his magic and block the attack and then launch several dark magic at him. The boy slash through the magic and easily dodge it. Then Arundel cast Hades at the boy but he dodge. Then he zoom and slash Arundel's body.
"Guuuh!" Arundel winched and then teleported and then reappeared above and launch his dark magic at the boy. But he already warped away the attack. Then the boy reappeared behind Arundel and then he zoom and strike at him. But Arundel use his dark magic and formed a barrier. Then it clash. the boy left with the power struggle and then the barrier was being crack, and then shattered. Arundel glared and then warp behind the boy to grab his neck. But the Boy swiftly turn and shove his swords at Arundel's hand. "Guh!" Next the boy shove his other sword at Aundel's guts and stab him there. "Gwah!"
The boy pulled out his sword and then attempted to stab Arundel next. However, Arundel use his magic and created a wave od dark magic to push the boy away. Next Arundel clap his hands together and formed several dark magic and then cause an explosion in the mansion. Soon Arundel realize the boy was in front of him and then launch several slashes all over his body and cough off several of his blood and dark wounds.
"You are no ordinary assassin. Did Edelgard, send you?" Arundel question as he teleported to the deck, ready his next attack.
"Edelgard? Did I not tell you this is my own accord? I do not know who is this Edelgard but I do not care. But it seems I'll be doing this one a favor." The boy answered.
"So... if Edelgard did not sent you... you must be someone who want revenge. It matters not. You possess mighty power... for a beast."
"A beast? Hehehe. How hilarious coming from you." The boy amused. "Now hurry up and die."
"Like I will." Arundel growled and then casted two powerful dark spheres at the boy who deflected them and next was Bohr X at him. But he dodge swiftly and then launch himself and soon clash with blades and magic. Arundel send out a wave of dark magic and then the boy deflects each and every one of them easily. 'What is this child?! How can a small beast able to deflect my power?!' Then the boy vanished. 'Where did he-'
"You're strong." The boy reappeared behind him and several phantom slashes strike all over Arundel and Arundel lost lot of his blood. "But you're also pathetic."
Arundel was on one knee. "You're a beast! How can one beast have so much power?!"
"I owe you no answer, you beast. Now it's for you to die."
"Thales!" Then four Agathans appeared to aid him but the boy already slash their bodies to pieces.
"Curse you vermin!" Arundel growled as he suddenly change formed. "I can't allow myself to die! I must see our ambition fulfilled!"
"That skin... I see. You're actually one of those despicable Agathans." The boy said.
"How do you know about us?!"
"How I know is none of your concern. You and your disgusting kind are the true beast of Fodlan. Your ambition will never come." He said and then ready to strike Thales until Thales teleported away. Although Thales teleported inside the barrier, he then pass through it and escape again. "What a pity. I let him escape. I suppose it doesn't matter. For now. Now then, let's see what he has." He said as he begin to investigate. After his investigation. There was nothing. The boy place in bombs in different parts of the mansion. Then he teleported himself out of there.
In Shambala...
"Guaaah!" Thales came back with heavy injuries.
"Thales! What happened?!" Myson asked as he and a few of his Agathans appoached him.
"I was attacked by an unknown assassin. This beast was nothing more of a child... but his strength is beyond that of a beast. I need to heal. And I need you find out about this assassin!"
Several corrupted noble houses later...
"My my." The boy said as he look over several documents and proofs. "This is why I despise the nobility. Always want power and more money. Nobles are the scum. But at least I destroyed many of their lives. Now let's see... Who else." The boy look up at his list. Many nobles houses from the Kingdom, Alliance and Empire are listed.
Among those names that were cross out were Aegir, Vestra, Fenja, Menja, Kleiman, Gideon, Eildure, Mateus, and Albrecht.
While Varley, Hevring, Arundel (Thales), Bergliez, Gerth, Rufus Blaiddyd, Rowe, Cornelia, and Archbishop Rhea are not crossed.
"Just a few more to go. It's a shame I'll allow that son of the Albrecht and his father to live while the rest of their clansman live. But they are good people. Still... the one name Thales... interesting. I'll be sure to report this. Who should I strike next?" Then his communicate vibrate as he pick it up. "Hello? Oh? I'm needed back? Understood." Then he hang up. "What a shame. I'll allow these houses to remain for now. Who knows. And I do the Crown Prince of Faerghus a favor. Since his dear uncle was involved in the Tragedy of Duscur." The boy smirked and then pulled out a button and then pressed it. From a distance, there was a large explosion from several areas within the three nations fo Fodlan. He smirked at the view before teleporting away.
(BGM ended)
To be honest. I'm disgusted by the nobility who abuse their position for power and such. For our assassin. He had done Edelgard and Dimitri a favor by purging them. But sadly that Rufus and Cornelia will live... for now. Hehehe. I have plans to see them executed. Want to know? Wait and find out.