3rd Person POV

As Otto's carriage entered the Graveyard's perimeter, the ones who had just won the battle waved to him as Otto waved back, and Natsuki Subaru ran over along with his contracted spirit, Beatrice.

"Otto! You made it!" Subaru said as he embraced his friend, and they bro hugged for a while before Subaru explained the situation in the Sanctuary, and also how they defeated the Oousagi.

"You know, Beatrice used this super cool spell called Al Shamak, which sent the Great Rabbit-" Subaru cut himself off while explaining as he noticed the two figures that came out of the carriage, carrying his other friend, visibly injured.

"Otto... what are they doing here?! And what happened to Y/N?" Subaru said as he looked at the people that once killed him in previous loops, and got into a defensive position as Otto quickly blocked him.

"Subaru, calm down! Let them explain themselves." Otto said as he looked at Elsa and Meili, who nodded and stepped forward after laying Y/N on the snow.

"After our battle, your friend Y/N offered us protection if we join you. He knew that if we failed our mission, our... leader, would no doubt kill us if we were to return. We accepted and are now under his command." Elsa explained as Meili nodded in confirmation, while Subaru sat down at let out a sigh.

"Just when I thought this day couldn't get any crazier..." Subaru muttered. "To think that Y/N recruited the Bowel Hunter onto our side... that's just insane..."

"And? Why is Y/N's clothes stained in blood?" Emilia said as she also came to examine the situation, and looked at her friend's unmoving state with worry.

"Uh..." Otto stuttered, struggling to come up with a good explanation. "Basically, when we were coming back, a remnant group of the Great Rabbit that probably escaped from your battlefield came to attack us. Y/N saved us with some kind of spell and killed the last rabbits, but he fell unconscious after that."

"I can't believe that we didn't completely eliminate the Great Rabbit... if Y/N hadn't eliminated it, all of Beatrice's mana would've basically gone to waste..." Subaru said in shock as he tried to comprehend the situation.

"Well, at least all of them are finished now, I suppose." Beatrice said as she sucked out some mana from Y/N's body, which pulsated weirdly as his mana was sucked out by Beatrice, while Subaru looked at Beatrice with a scared expression.

"Beako! Why would you do that to Y/N?! He's already injured, if you suck out too much mana, he might actually die!"

"He burned down Betty's library, so I'm only giving him the punishment he deserves. In fact, Betty could've gave him a way harsher punishment than that."

"Well, you aren't exactly wrong..." A voice came from the boy that was supposed to be unconscious, and everyone jumped as Elsa helped him up.

"Y/N! You're awake!" Subaru said in glee as he also embraced his friend in a bro hug.

"You're okay too, you crazy idiot..." Y/N muttered as he checked his surroundings. "To think that Vacuum Trigger would activate... did Beatrice drain my mana?"

"Eh? How did you know?" Subaru said, surprised.

"Well, that's also probably the reason I woke up." Y/N replied, but Subaru looked confused.

"Fine... I'll explain later..."

The protagonists unite on the snow of the Sanctuary, after a victory in the harsh battle they faced. However, the last phase of this arc has not finished yet...

Timeskippu*

Y/N POV

I ventured out into the forest after the long explanation about the events at the mansion, and also was forced to reveal some of my abilities. Subaru and the others couldn't be more shocked, while the only one who was calm was Beatrice, who understood completely what I was talking about.

They also took turns punching Roswaal. To be honest, I guess he was a very bad person, but he never directly harmed me in any way, despite being a burden in some ways. So, since I didn't hold a particular grudge, I just casted Kilat on him to shock him for a minute.

And no, it did not kill him.

I trudged through the thick snow until I reached the place where charred trees and ice spikes were formed, and went to the centre of the ashes as I discovered the charred and burnt copy of the Book of Wisdom, formerly owned by Roswaal. I picked it up before brushing off the dust, and pointed my palm at it as I muttered my original Yang magic spell.

"Reinigen." The charcoal and ashes left on the book left its surface and inside, revealing a clean yet broken book. However, I was satisfied enough with it for now, so I tucked it in a bag that I took from the house, and hid the bag under my thick jacket.

"Y/N-san?" Otto's voice rang out, according to my expectations. I turned as I faced the merchant.

"Otto? What are you doing here?" I asked, feigning innocence.

"I... Y/N-san, what are you doing here?" He said, changing the topic.

"Well, I came here since I smelled smoke and ashes and so I came to check this peculiar place out. I think some kind of battle happened here, but I don't exactly know why. Now, why are you here?"

"I-, uh, I came to take a walk as well, and just happened to stumble upon this place." Otto lied, as I knew he wanted to let a friend of his in Priestella to restore Roswaal's Book of Wisdom. However, I decided not to expose him, since it'll be in my best interests as well.

"Well, I'll leave you to your own business now. I have somewhere I need to be." I said as I left, going away to the forest. Surprisingly, Otto didn't follow me, and I continued walking in the snow until I heard Echidna's voice, who has been quite dormant for a while now.

Y/N, are you there?

Yes, Chid-chan. Did you need something? I think I can hop into the tea party now.

No, no, there's no need for that. Come to the graveyard. I have something to show you.

Well, I guess this is perfect, I have something to show you as well.

What is it you have to show me?

Well, Chid-chan, you also have a surprise for me, so I can't spoil mine now, can I?

Fine... come quickly.

Coming right over now.

With that, I ended the conversation link and enhanced myself with Akra as I dashed through the snow towards her tomb. As I skidded to a halt beside the giant rectangular hole that was the basis of Subaru and Emilia's Cocytus spell, I looked at the graveyard ahead.

Nothing seemed unusual, so I hopped into the hole before dashing to the other end in a single sprint using Ul Akra. I hopped up and carefully went up the stairs of the graveyard when I realized a certain pink haired girl was standing there.

Wait. "A Ryuzu clone? Are you Arma, Bilma, or Delma? Shima has a white robe now, so she shouldn't..."

"Not quite, Y/N." A different voice spoke through the calm demeanor of the clone, resembling Ryuzu Shima, but a completely different person on the inside.

I saw the eyes that reflected my own, and the ones with endless knowledge. My lips curled into a smile as I approached the figure, now smiling as well.

"Welcome to the physical world, Echidna-chan."

Timeskippu*

Echidna and I ended up staying inside the graveyard as we discussed about the future. For now, it seems that we had to part ways due to the current situation, and since Subaru would definitely allow Echidna to be anywhere near us. He holds a strong hatred for the Witch of Greed, mainly because she abandoned his contracted spirit, Beatrice, by giving her an impossible demand. Although, as sad as it is, I personally just thought that Beatrice might be too scared to face the outside world, and that's why she was indecisive.

"Echidna-Chan, there's still a thing I need to talk to you about-"

"Y/N, you shouldn't call me Echidna in the outside world. It'll simply be very confusing and dangerous for both myself and others. So how about... a name from both you and Subaru's memories."

"What do you suggest?"

"Omega. It means 'the end'."

"From the Greek letter? Sure. It fits the current you, I guess. To be honest, you aren't the original Echidna anyways, right?"

"You're partly correct. I was a copy of her soul a few years before she died, so myself and the original can be viewed as two different entities. Now, what did you want to show me?"

"Well, I thought those would be of great help to us..." I said as I first took Roswaal's copy of the book of wisdom out, now charred and burned. I then took out the second one, in near perfect condition, Beatrice's book of wisdom copy.

"I understand from your memories that Roswaal's copy was in the open, but how did you manage to get your hands on Beatrice's?" Omega asked, intrigued.

"Well, when I was fighting the Bowel Hunter, I stepped into a door by accident that has not yet been broken fully. I managed to somehow squeeze myself into the Forbidden Library, where Beatrice was being convinced by Subaru. The gospel lay on the ground behind her, and I squeezed back through the crack in space after taking it immediately."

"Interesting... well, I would say you did great, Y/N! With these, I can potentially restore my original Book of Wisdom, or at least one with similar powers." Omega said as I gave her the bag containing the two gospels into her hands, and she tucked them into her cape before she decided to leave.

"Well... I guess this is goodbye for now, then?" I said, almost about to cry.

"Don't be so sad, Y/N. We'll be in full telepathic contact the whole time. When the time is right, we'll see each other soon." Omega said as I accompanied her off the stairs of the graveyard, and began to leave. Just as I was about to yell my last goodbyes, she stopped abruptly.

"It seems I spoke too soon, Y/N. It seems that fate would not allow me to leave your side, at least for now." Omega said as she faced the forest, and Subaru came running out of it.

"Hey, Y/N! What are you doing here at the Graveyard? Come on, we have a feast! Otto told me you went here, so I came to find you-" Subaru stopped himself as he noticed Omega, and looked at me skeptically. "Is that a Ryuzu clone? What are you doing with one of them?"

As Subaru stepped closer, I suddenly realized something as I suddenly felt an aura emitting from next to me. Subaru noticed as well, and the familiar presence ticked him off on who he was looking at.

"No way, you! You're supposed to be dead!" Subaru said in disbelief.

"Why the harsh comment, Natsuki Subaru? Is it wrong for me to be alive?" Omega spoke, in a colder tone than her original voice.

"Y/N! Step away from her! She's not a Ryuzu clone! That's-"

"Why would I abandon my own contracted?" I said back at Subaru, as he looked at me in horror.

"You- Y/N! What have you done?"

"Me? I simply saved a girl who needed saving to give her another chance at fulfilling her dreams. Why are you acting so hostile?"

"I don't know what she said to trick you, Y/N, but she is not who you think she is! Echidna is a scheming witch! She's using you!"

"Subaru, you rejected Echidna because you thought Beatrice needed saving, right?" Subaru nodded as he looked at me, confused at what I was getting at. "Well, now it's Echidna's turn to be saved. And I have rescued her. I refuse to leave a girl who needs to learn more to be a better human being alone in a world with others like herself. If you cannot she that even she deserves help, then we have nothing to talk about."

"She's deceiving you! You can't trust her words!"

"I'm the Warlock of Deceit. Do you expect me not to know when someone lies?"

As Subaru struggled with a response, he glared at us as he pointed at me. "Y/N! I challenge you to a duel! If you win, you get to state the terms, but if I win, I will decide your fate and hers!"

"Challenge accepted, Subaru." As soon as I said that, a fist, invisible and fast, punched me in the face as I was knocked back. Subaru smirked as he thought I was confused, but he was hit with two fists as my extensions hit him as well.

We shot our authorities at each other once more, this time, my two extension palms stopping his fist. "The real battle begins now, Subaru."

The two users of Sloth clashed as the battle ensued.

Authority(ies):

Authority of Deceit (Commonly known as Authority of Elements):

-Vacuum Trigger: An innate ability stored within the tesseract-shaped Deceit Witch Factor, allowing the user to spring themselves from unconsciousness when the mana fluctuations around them changes drastically, as a built-in self-defence mechanism of the body.

-Critical Overload: A mysterious ability that protects the user of the Deceit Witch Factor, causing them to unlock their true potential while their actions are coordinated by ?, helping them avoid certain death. This ability only triggers when the user is about to die and has a 15 minute cooldown.

- Haywire Warp: A variation of Critical Overload that allows the user to warp the attack that will kill them, creating a tear in space-time to absorb the attack. Meanwhile, the abilities of the elements are unleashed and they will defy the chemical laws before the user decides to cancel their existence.

-Decagenso Rupture: A variation of Critical Overload that allows the user to combine ten elements into one attack, fusing them into a substance unable to be defined by chemical laws. Then, the substance explodes from the inside to spread parts of itself into the opponent's body, replacing their atoms with the substance itself.

-Pure Truth: Y/N's knowledge of the future. Although he claims that he can only know up to a certain amount, it is only a cover-up to avoid suspicion. This ability also allows him to lie without being detected (e.g. Crusch's divine protection), as long as it is part of his knowledge of this world's future.

-Veritas Oneiro Chunyu: The 'Truth Dream Injection'. A sub-ability of Pure Truth that allows the user to show others fragments of Pure Truth to get a better understanding of a situation or past. This ability cannot show the future.

-'Suitoru': A magic spell that allows the user to absorb a certain ? of the enemy, making it their own and can be stored for later usage. (Current: White Whale's flying seal, Great Rabbit's infinite multiplication)

-Partial Authority Immunity: Y/N is fully immune to some authorities, while some still have a diminished effect on him.

-Scindo: The ability to split the Deceit Witch Factor into pieces to implant them in others, but the pieces can only be taken back a year later. Current Percentages: Y/N L/N: 99.997%, Crusch Karsten: 0.003%

Authority of Sloth:

-Imperceptible Extensions: Y/N's authority also somehow manifested almost the same way as Betelgeuse's did. When activated, two invisible hands can be summoned to be moved around telekinetically. Penalty: Y/N must have his own two arms attached if he wants to use this ability. If a person is not considered as Y/N's enemy, they will see the extensions. However, another holder of Sloth will also see the hands, regardless of the previous statement.

Elemental Masteries: Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Sodium, Magnesium, Aluminum, Silicon, Phosphorus, Sulfur, Chlorine, Argon, Potassium, Calcium

Spirits: Alchemis- fire spirit (Elder Spirit, devil), Cahya- yang spirit (Great Spirit, fairy), Bayanga- yin spirit (Great Spirit, succubus)

Magic Spells:

Goa- shoots a small ball of fire from the tip of the user's index finger when imbued with mana.

El Goa- manifests three fireballs around the user, and shoots them towards the opponent at high speeds.

Ul Goa- The user fires a large amount of powerful fire bullets. A powerful flame scatters when the bullets land.

Al Goa- The user lets loose a massive fireball, scorching away everything in its path. The bigger the caster's skill, the fireball hotter and bigger the fireball.

Ol Goa-the user concentrates by making a giant fireball, before compressing it to insane densities, and shoots out the beam of fire from their palms

Il Goa- Al Goa, but the user applies a homing technique to the spell itself

Al Huma- The user creates a sharp ten meter long spear of ice.

Absolute Zero- The user creates a vacuum in an area, by freezing the atmosphere to an absurd degree. By doing so, even time will freeze inside of that vacuum and no one is capable of escaping it unharmed.

Akra- A yang magic spell that allows users to enhance their physical abilities as well as sharpen their senses.

El Akra- A yang magic spell that allows the user to move extremely fast, almost becoming one with wind as they fill the user with mana in their nerves, muscles, bones, and veins. This technique is able to match Felt's Divine Protection of Wind

Ul Akra- A yang magic spell that greatly boosts the user's speed and strength, allowing them to travel near the speed of sound and being almost invisible to the naked eye when moving.

?-?

Jiwald- fires heat rays from the user's fingers.

El Jiwald- The user fires several rays from their fingers which are then brought down in a claw-like motion.

Ul Jiwald- the user fires a volley of light rays from their palms, raining down at the opponents at high speeds.

?-?

Shamak: The target becomes unable to sense where they are, however they can still feel the ground and sense what's happening to their body.

El Shamak: The target becomes unable to control their bodies while under its effects.

?-?

Minya: Magic that creates stakes made of crystallized mana covered with light purple flames. They are strong enough to penetrate defences. Any stakes in the air explode and release smaller stakes that fly in all directions which then rips targets apart.

?-?

Murak: The user reduces the effects of gravity. Just by lightly pushing yourself off the ground, a person can jump as if they had springs. If the user wishes to, it can also be used to fly, although the user will get blown around by the wind like a leaf, but they won't flip around in mid-air.

Vita: The user casts this spell to amplify the effects of gravity, making an object heavier.

?-?

Kilat- The user gathers lightning on their fist/ weapon, and slams it down at the opponent, creating a giant electric arc to shock and paralyze enemies.

El Kilat: The user uses lightning to spread it throughout their body, increasing their reaction speed and movement speed. The user also coats themselves in a thin layer of thunder, able to direct electrical shocks into any opponent they attack.