"I'm heading out, I'll be gone for a couple days." Zen told his little sister, who could only puff up her cheeks in slight anger.

"My friend, Lizz, has been waiting on you to get back to her. She's been hounding me everyday about it!" Jino sighed. "Oh yeah... I haven't had any way to contact her after I finished all of Jin's raids..." Zen patted Jino's head.

"Give her my number, when I get back from my trip, I'll get in contact with her." Zen sat out, and entered the Demon Castle.

The burning hot flames raged on as he walked up to the door. He brought the key up to the door, and a notification appeared.

[Would you like use the key to enter?]
[Yes/No]

Zen silently clicked yes, causing the huge doors to the Demon Castle to creak open. He walked through, gaining a quest as he did.

[A quest has arrived!]

"What's this? I can't sense any monsters in this hall... is it just a corridor?" Zen walked down the silent and dark hall, then his new quest's details appeared in front of him.

[Quest: Collect Demon Souls (Part 1)]
The Demon Castle is filled to the brim with various demons.
Hunt down demons and collect their souls for a reward.

Quest Completion Requirement: Gain 10,000 Demon Souls.

Rewards: Item of your choosing, 50 stat points, a hidden reward.

"So I can't even fail the quest? That makes this easy." Zen pushed open the exiting doors, and he was surprised when he saw the wide plane of Seoul in front of him, it was just burning a lot more than normal.

"Did my ability really recreate all of Seoul? That's insane. I may not be able to finish this in a few days..." Zen cracked his neck, seeing a bunch of various demons all advancing towards him.

"If I've gotta collect 10,000 demon souls, that means there are at least 10,000 demon souls! I should have some fun stretching." Zen grabbed out his various daggers, Rasaka's Fang and the Knight Slayer, and activated his various buffing skills.

Zen shredded through the demons without the slightest problem, all with a bone-chilling smirk planted on his face.

[You have killed 10 demons.]
[You have earned 10 demon souls.]

"Oh? There's a counter? That'll make things easier." Zen pulled his dagger out of a demon's head.

Zen slashed through insane amounts of demons, all while he dodged gracefully. He stood atop of the bodies of the fallen demons, his counter saying 390.

"I've got a long way to go... Yeon Hon Principle." Zen healed himself, getting rid of his small amount of fatigue.

As time went on, Zen received a contract to raise the floor that he was on. "All beast type monsters, come out." Zen felt his ice bears awaken, all hearing his orders.

"Ah, it's the ice bear boss." Zen hummed nonchalantly as he pet the huge ice bear's head.

"Oh shoot! Kenpachi, let me evolve you." Zen called out for Kenpachi, who happily bowed to his king.

"Ah, it's time for me to finally get stronger!" Kenpachi smirked.

[Kenpachi would like to advance. Will you allow him to?]

"Ascend." A large shock of spiritual energy was send out, Kenpachi evolving to the next level.

[Kenpachi Zaraki]
[Level 1]
[Rank: Elite Knight]

"Alright." Zen climbed upon the back of the ice bear boss. "Kenpachi, return to my shadow." Zen ordered, causing for Kenpachi to slouch a little. "Don't worry, you'll be able to fight soon enough." Zen reassured.

"For now, let's just try and get to the center of this floor-!" The ice bear boss roared, suddenly charging through the various demons and terrain.

"Woah! I'm gonna call you Tank! Let's go Tank! Run until we hit the magic circle!" Zen smiled wide, encouraging the ice bear.

Zen climbed level after level with thw help of his Shadows. He originally thought the climb would be difficult, but with the help of his soldiers it was nothing but a cakewalk.

I thought this dungeon would be harder... but I guess I'd been mistaken." Zen thought as he climbed yet another level, hitting the 50th floor.

"Gon, Killua, Minato, Erza, and Igris. Ascend." Zen evolved his Shadows, effectively boosting his and their powers higher.

[Igris]
[Level 1]
[Rank: Elite Knight]

[Erza Scarlet]
[Level 1]
[Rank: Elite Knight]

[Minato Namikaze]
[Level 1]
[Rank: Elite Knight]

[Gon Freecs]
[Level 1]
[Rank: Elite Knight]

[Killua Zoldyck]
[Level 1]
[Rank: Elite Knight]

"The 50th floor." Zen arrived to see two boss monsters in front of him.

[The Ruler of the Lower Floors, Avaricious Vulcan]

[The Dragon Slayer of the Lower Floors, Unwavering Ornstein]

Zen looked to see Vulcan sitting in a huge throne, much fitting for its size. Vulcan was a large-in-size obese, but bulky red demon with a skull-like mask layered right on top of its face. It had disgustingly nasty sharp teeth, with large bulky fangs bordering its teeth. It's eyes glowed red as it met eyes with Zen.

The large demon also had many different guards surrounding it, effectively protecting it.

Ornstein however, was standing alone, almost as if it was an outsider.

Ornstein had bronze armor, with a long thin spear with it. The intimidating armor reminded Zen of Igris's armor.

Zen could feel Igris get nervous as he activated Clairvoyance. Zen felt overwhelmed for a moment as he felt Vulcan's greed and sadistic nature, Ornstein's sad feelings that were covered by feelings of anger, and even Igris's sudden feeling of shock.

"Brother...!" Igris's deep voice rung out, his eyes meeting Ornstein's. "Brother? No..." Zen couldn't hold back a smile. "But wait... why is he in here?" Zen asked.

"I lost him years ago, before I started to work underneath the Shadow Monarch, before you." Igris held back from just attacking his brother.

"They look dangerous. We can't underestimate them. Nix, you come with me. We're gonna beat Vulcan. Everyone else, focus on Ornstein and the other knights." Zen ordered, his various generals and Shadows all coming to his aid.

"Kirigakure, I haven't seen you in a while." The Zanpakuto-hollow woman slid up his Shadow and stood behind him.

"Yeah, I've been sorta busy, I'll always be a little different from your other Shadows." Kirigakure sighed. "Sorry I sent you on that difficult recon mission, but I needed some info. Thank you for the hard work." Zen thanked Kirigakure.

"Now... let's kill this demon!" Zen ordered, his army of Shadow charging all at once.

"Now this... this is a show." A female said, chuckling as she looked at the war. "It's so nice to see a little Dragon. He is pretty strong for a newbie though." The female with purple Dragon Scales up and down her arms and legs hummed.