AN: Hey everyone, I have the next chapter here. Thank you for all the support you have shown this story and the care people have put into the Tv Tropes page. With that, I wanted to post this chapter a little earlier. Next week's chapter will be at the normal schedule, as I will need a bit more time to make sure it is good enough for posting. This chapter follows the events of the last one, answering a lot of the questions that came up at the end. I also give a lot more context to Sienna Kahn as a character in this story. Hope you enjoy this chapter, leave a review with your comments and questions, and have a nice day.

Chapter 16 – Origin of Hate

Sienna Kahn.

Achille slowly regained consciousness, opening his eyes. However, his vision was dark as he felt something over his whole head. "Let him see," Sienna ordered as Achilles felt the black bag removed from his head. He soon discovered himself on his knees, his arms and legs bound with chains with red markings. In the surroundings, he found himself in a large red tent. Looking forward, he discovered the Leader of the White Fang sitting a red throne chair, her right leg resting on her left knee. To her right stood Caenis, and to her left stood Sheba.

Achilles then noticed the fourth person walking, the person who took off the bag, the person who shot him in his heel. Now having a better look, he realized what this lioness faunus was. Her dress was black with blue lining, matching her boots and sleeves. Her shoulders were exposed but her neck was bound with a large collar and a chain leash. He hands armored with a type of white bone-like metal, almost matching the Grimm mask on her face. Her hair was a greyish white with a hue of purple at the bangs. A set of lioness ears were atop her head, along with a long tail in the back. She tossed the bag aside before standing next to Caenis, whose arms were crossed, "You're sure he's not the White Fang Killer?" The White Fang Champion asked.

"I know him, he's not that cruel." The lioness faunus said in a familiar voice, "But he is incredibly foolish." She said with Achilles trying to break the chains, but the metal heated and glowed orange. He recoiled in pain before gritting his teeth.

"Not gonna happen," Caenis informed the swift hero, "I used runes mixed with my blood to enhance the chains to a divine level." She then cracked her knuckles, "But, if you want to go for round two-"

"That's enough," Sienna ordered, "We need to save our strength for the real White Fang Killer." She then looked over to the lioness faunus, "I trust you as our organization's informant, you can confirm he is not our true enemy."

"Yes, I can. What he said during the fight was true." The White Fang informant said before glaring at Achilles, "His best friend and girlfriend are both faunus."

"Why don't you take off that mask already," Achilles said in anger. "It can't fool me."

Sheba had a look of confusion as she looked over to the lioness faunus, "Atalante, how do you know this guy?"

"Atalante?" Achilles said with a smirk, "Seriously, that's the best you came up with." He said with the White Fang Informant placing her hand on the Grimm mask, "Then again, you are just her Alter." He said with Atalante removing the mask, reveling her greenish-yellow eyes.

"Her Alter?" Caenis said in confusion, "What's that?"

Sienna answer her champion, "They were a Grimm byproduct used in last year's invasion of Apocrypha." She then looked over to Atalante, "And yes, she is one of them."

"You knew?" Sheba asked.

"And you didn't think to tell us!?" Caenis spoke as she glared at her leader.

Sienna sighed as she closed her eyes, "Regardless of her origin, she was still born into this world as a person free to choose their own path." She then opened her eyes, glaring back at her champion, "And like the three of us, she is dedicated to our path of equality."

"Tsk," Caenis scoffed before glaring at Atalante, "You're more a Grimm than a faunus to me now."

"Think of me what you will," Atalante responded, "But I promised Sienna Kahn, my loyalty is to the White Fang." Her eyes then glared at the White Fang Champion, "If you stand in my way of protecting then." She said as her body radiated a thin dark aura, "I assure you; I can become more Grimm than faunus."

The two then engaged in a staring contest before Caenis smirked, "Ha, I was just testing you." She said before placing her right hand on Atalante's head, "You and I have been in combat for a while now, I know I can trust you as an ally." She said as she scratched her teammate behind the ears. However, the White Fang Informant slightly flared her fangs as she hissed. Caenis then glanced over to Sienna, "And if Kahn says you're okay, that's good enough for me."

"Huh, that was easily resolved," Sheba said with a smile as she looked over to Achilles, "What about him?"

"Yeah, what about me?" Achilles responded, "You know I'm not the White Fang Killer now." he said as he struggled with the chains, "So, let me go."

"No." Sienna, Caenis, and Atalante said at the same time. Sheba nodded in agreement to her team with their leader continuing. "You know our location; we cannot have you leaking that information to the wrong people."

"Then why don't you kill me right now?" Achilles dared.

"Trust me, I want to." Caenis answered before sighing, "But, Kahn said no."

"I suggested we ransomed you off." Sheba said before turning to her leader, "You know, make a little extra revenue." The White Fang Accountant said with Sienna glaring, "…But, that idea was shot down as well."

The Leader of the White Fang spoke towards the swift hero, "Atalante informed me that you know Blake Belladonna." She said with Achilles gasping, "I'm assuming she is one of whom you mentioned before."

"I'm her boyfriend," Achilles said before scowling at Sienna, "A much more supportive one than that freak from your organization."

"You refer to Adam." Sienna clarified, "His methods grew more…volatile than I thought they would."

"…Did you know," Achilles asked, his chains warping as he appeared like he was about to break free, "Did you know that he abused Blake!?"

Sheba and Caenis looked to hear Sienna's response, but the Leader of the White Fang sighed with her eyes closed, "Yes," She said before opening her eyes, looking to her informant, "But only until Atalante informed me."

"Huh?" Achilles said as he looked to the faunus alter, "How did you know that?" He said before narrowing his gaze, "Blake said she only ever told me and Yang about that part of her past. Not even the rest of her team, and certainly not Sis."

"It's because I'm not only Atalanta's Alter," Atalante responded, "I am partly Blake's Alter as well." She said with Achilles, Sheba, and Caenis all looking at her in confusion, "Let me explain." The faunus alter said before her mind drifted back to events a year about.

The image of a Grimm Boaratusk eating the remaining corpse of Nikushimi, lapping the black blood on off the ground. However, the one began to frail wildly, enraging the other feeding Grimm. This Boaratusk then rammed the others in its sounder, impaling each one with his tusks. After killing its own kind, this Grimm was the only one standing. It's body then began to violently shake, ripping off the bone armor. Purple markings formed on its face as the tusks turned black. Suddenly, a left arm erupted out the monsters back. One with the shape of a normal person's, but with sharp nails and black fur on the forearm and hand. The arm then pressed itself against the body of the Boaratusk, revealing more the person. After a few minutes of torment, a new Alter was born. The lower body of the Boaratusk was a discarded pelt, turning to smoke. However, the head remained on the right shoulder of the new Alter. Her arms and legs were covered in the black fur, her feet looking like hooves. Her center and the head remained exposed, apart from some section being covered. As the faunus alter opened her eyes, a look of hatred glared off into the distance.

In the present time, Achilles gritted his teeth, "Sis told me that she was covered in Blake Atler's blood at one point, but it had no effect on her and didn't create an Alter right away." He thought to himself, "Little did we know, this creature was being formed."

"Like the other Alters, I have my original's memories." Atalante spoke up, "However, I hold the memories of Blake, Atalanta, and even Nikushimi."

"If that's true," Achilles asked, "What's your goal?"

"I was born of a being expressing only hatred, a hatred focused around Blake." Atalante responded, "With that, the only way for me to have purpose was to kill Blake." She said was a look of anger filling Achilles eyes, but the faunus alter closed hers, "However, I hold no hatred towards Atalanta. Rather, I agree with her desires in this world." She said before remembering another event from a year ago. Atalanta watched from the bushes as she discovered Blake and Achilles. However, while rage filled her eyes, it soon turned to shock as she saw the two were about to kiss. Suddenly, her rage lessened, "One of those desires was for you to find someone you can be truly happy with." Atalante said to herself now as she remembered the event, running away as she made her way through the bushes. Once she was far enough away, Atalante found herself alone in a clearing, stopping the center, "Then, I had no idea where to go." Atalante commented on her past self, who then gritted her teeth, "However, I knew of one more person who was a source of my hatred."

"Adam." Achilles answered, "That's why you went to the White Fang."

Atalante nodded, "I searched near Vale first, but he was gone." She said before looking to Sienna, "The only way I could think to locate him was to ask the only person he took orders from."

Eight months earlier.

At a White Fang base in Menagerie, Atalante busted down the door leading to a Sienna's chamber room. Leader of the White Fang stood out of her seat as she readied her weapon. The faunus Alter readied to attack with the intent of gaining her desired information. However, Atalante hesitated upon seeing the girl to Sienna's right. Ilia. Atalante's mind to flash to the memories of Blake, causing her body to convulse in rejection to her current emotion. In this moment of hesitation, Sienna bound Atalante with her chain wipe. The two White Fang members ran over as Atalante fell to the ground, gritting her teeth, "Where is Adam!?" The alter screamed.

"Why do you want to know where he is?" Ilia asked, her weapon aimed at Atalante's head,

"I want to kill him!" Atalante screamed, "As payback for everything he did to me!" The chains began to crack as the faunus alter was about to break free. At that moment, Ilia was about to stab the faunus alter in the head.

However, Sienna stopped her, "Wait!" She ordered her subordinate, "Ilia, secured the perimeter to make sure no one is critically wounded." Sienna then looked down to Atalante, "I need to talk with our new guest."

"But-" Ilia said with the Leader of the White Fang not listening. The lizard faunus then gritted her teeth as she ran down the hall.

Sienna then knelt to look at Atalante, "His brotherhood just returned to inform me. Adam was captured by Atlas military a couple weeks ago." Sienna said with the faunus alter gasping, "Now, my turn to ask some questions. Who are you?" The Leader of the White Fang asked, then looked Atalante's boar shoulder glaring back at her. In not wanting to ask that question, Sienna noticed the lioness ears and tail, know the kingdom where these dual appendages are more common. "You're a faunus from Apocrypha."

"I…" Atalante was about to say, but for some reason, she could not think of an answer, "I…I'm an Alter." She said with her voice now slightly weaker than before, "That's all I am."

The leader of the White Fang sighed, "I don't know what that means, but I'll consider you a faunus." She said with Atalante looking back in confusion, "What I do know, you've lost your purpose," Sienna concluded as Atalante eyes slightly widened, "You still wish to fight back against those that have wronged you." She said before loosening her grip on the chain, "I understand that much. And frankly, that's all I need to understand about you." Sienna said as she untied Atalante, "If you went to kill Adam, you would die in the process by the hands of Atlas military."

"If that is my fate, so be it," Atalante responded, her hatred returning, "But that man deserves death!"

Sienna sighed, crossing her arms, "Adam has already had his fate sealed. I warned him about what would befall him if ever caught by the military. He knew the risks, but still let his hatred of humans get the better of him." The Leader of the White Fang had a look of focus at Atalante, "However, your fate does not have to be the same as his." She said before offering her right hand, "You were born into this world, you get to choose your own purpose in life." Atalante looked at the hand. After a few seconds, she matched Sienna's gaze. The faunus alter then reached out her right hand, accepting the offer, causing Sienna to smile, "Welcome to the White Fang."

Present time.

Sienna smiled as she looked over to Atalante, "Then, after some shaving and hacking off that boars head, you told me everything." The Leader of the White Fang said before her smile faded, "I knew Adam was starting to become unstable, but I did not think he would ever go that far with an ally." She then looked over to Achilles, "My apologies to Blake as well. Despite her abandonment of our cause, I understood why she could not be near him anymore."

"Blake never abandoned the cause for faunus equality," Achilles clarified, "She abandoned the White Fang's new violent methods of achieving equality." He said as he glared at the leader of the White Fang, "A method you enforced."

Sienna scowled back, "And her method now is what? Become a huntress to show the value of faunus to society beyond cheap labor?" She guessed before sighing, "All Belladonnas have the same mindset, assuming they can lead through an example of good character." She said before putting her right leg down, leaning forward as she spoke to Achilles, "But that mentality assumes humans will accept this of all faunus. You can't change their opinion of an entire race through one person. It will only make that one who succeeded look better, while the rest of us will still suffer for not being able to live up to that standard. Blake may reach peace, but faunus never will because of her actions." Sienna then pointed to herself, "With my method, humans now see faunus as one to be acknowledged, not just a select few they mark as 'the exceptions.' The Belladonnas had the right intentions but failed to compromise any of their ideals for the truth." The Leader of the White Fang said as she glared at Achilles, "To show people your value, you not only have to stand up for it but, fight for it as well."

"And when does the fighting stop!? When does the fear your making turn into peace?" Achilles asked, his position reaming unchanged, "All your doing is making more conflict and creating more bloodshed as a result." He said as his eyes narrowed, "Even if you think your hands aren't dirty, it's because of you that this White Fang Killer has been massacring faunus."

At that commented, Sienna's eyes flared with rage. Her right hand crushed the armrest to her thrown. She looked as though she saw about to lunge at the swift hero like a tiger to its prey. However, she did not. The rest of her team watched as Sienna breathed out her rage, focusing on Achilles, "Even if I believed what you just said, it only gives me more reason to find the White Fang Killer." The Leader of the White Fang responded, "I will not rest until the White Fang Killer is dead by my hands, making him pay for all the faunus lives he has ended." Sienna then stood up, "We're done talking. Until I decided your fate, you're not going anywhere." She said before leaving the tent.

Achilles gritted his teeth as he watched her leave. Suddenly, Sheba spoke up, "Yikes, she was about to pounce." The jackalope faunus said before crossing her arms, "She only got that angry after she found out Il-"

"That's enough," Atalante cut off the White Fang Accountant, "Please, don't bring her up." She said with Sheba realizing her error, now remaining silent.

Achilles then focused on Sheba and Caenis, "Why are you two here?" He said remembering their strength in battle, "Both of you are from Apocrypha, right?"

"No, I'm from Menagerie, but I went to Apocrypha to get stronger," Caenis responded first, looking off to where Sienna just excited, "Once I heard Kahn was made Leader of the White Fang. I came back to join her group, becoming her strongest solider."

"Why do you follow her?" Achilles asked.

The question took Caenis to an event over fourteen years ago. In the middle of a Menagerie park, a couple of teen human tourists were pushing over a young chicken faunus girl. She cried as her tiny yellow wings were broken, but the kids laughed as they pointed at her. Suddenly, one of the human teen's was dropkicked into the back, knocking him on the ground. The other looked around to find the attacker was a nine-year-old horse faunus girl with white hair, a look of anger in her eyes. The other teen gritted his teeth as he attempted to kick the horse faunus girl.

The horse faunus girl dodged the right kick an tackled the other leg, causing the teen's left knee to bend backwards. He screamed in pain before falling on the ground, rolling in agony. The horse faunus girl then looked to the chicken faunus, signaling her to run. The chicken faunus nodded, mouthing 'thank you' before escaping this encounter. The horse faunus girl smiled at her successful rescue.

However, the other teen got back up. From behind, he caught the horse faunus girl in a headlock. She struggled to free her neck but was unable to overpower him. The teen laughed in victory, but it soon turned to screaming of anguish. From behind him, a young tiger faunus run up on his back, viciously biting his right ear and nearly yanking it off. In the pain, he let go of the horse faunus girl then tossed the young tiger faunus. Despite the heavy throw, the young tiger faunus landed on her feet. She flared her fangs at the teen. In fear, the teen picked up his friend as they hobbled away.

The young tiger faunus sighed before looking over to the horse faunus girl, who was coughing on the ground. At that moment, the horse faunus girl looked up at the young tiger faunus. They appeared around the same age, with the young tiger faunus reaching out her right hand. She smiled as she looked down at the girl, blood from the ear was still smeared on her face. The horse faunus girl giggled before accepting her hand.

Back from reminiscing to herself, Caenis spoke, "The two of us have been friends for a long time." She said with a smile on her face, "We both understand how to get things done." The White Fang Champion looked back to Achilles, "To that end, I'll follow her wherever she leads."

Achilles then looked to Sheba, "Well, I'm from Apocrypha, but left to go to Atlas. I heard that wages were equal for faunus in that kingdom, and the pay is high." Sheba explained, but her eyes turned to slight anger, "However, that Dust Company was terrible. They took out so much of my paycheck for funds that I discovered go right back to that jackass of a CEO." She said before scoffing, "So, I figured I could manage the money of the White Fang. The irony of sticking it to that company for not seeing my value, that's priceless." The jackalope faunus said with a smile, looking to the place Sienna left, "While me and the leader don't always agree, she lets me speak my mind on any issue. It's more validations than I ever got in my last job." Sheba then smirked to Achilles with her eyes half open, "And after all, everyone needs an accountant."

Atalante then looked over to the others, "Why don't you two go catch up to Sienna, make sure she's okay." The faunus alter asked, "The three of you can rest, I will watch this guy for the first shift." She said with the two nodding, walking out the tent. Atalante then looked at Achilles, each glaring at the other, neither having anything else to say.

AN: There you go, this one gives a lot of context to Sienna Kahn. In talking with other people, I do agree that her lack of context in the show does make her a lot more moldable for fanfictions like this. If I had to say her character of reference when I write her here, I would say Eren from Attack on Titan (Manga readers should notice this a bit more). I really wish she was given more to do in the show, because she is still a fantastic character design. Speaking of amazing designs, we also have Atalante, who is also Atalanta Alter, (Which is technically Blake Alter 2). I don't care for her wild boar outfit, but that black dress with blue lining is my favorite first form art of a character in FGO. Also, I apologize for having so many characters here that have nearly the same names. Trust me, it is not easy to write either. She is the last member of the White Fang's elite team, which I would call Team SSCA (Scarlet or just Scar, there is an implied R). Caenis gets some interesting backstory with Sienna. Sheba gives some clarity to faunus discrimination in Atlas. You also got an Ilia cameo here, back when she was alive. Achilles is in some hot water now, not going anywhere anytime soon. Next chapter, we go back to Weiss' group as they enter one of the White Fang bases. That is all for now, thanks for reading, and hope to see you in the next chapter.