Time: ???
Location: RED's Domain

He's Faster, Shoots More Explosive Grenades, his sword extends by swinging and its Made out of pure argent energy which is superior than  Combine Dark Energy, he can easily damage BLU's Energy Shield with ease. RED Cannot Heal himself by damaging BLU. Still RED has the advantage can pierce through BLU's Damage Resistance.

Phase 1 - Summon 2 Wolves and 1 Hellknight

Phase 2 - Summons Demon Squads

Phase 3 - Summon 5 Marauders, Demon Squads and 2 Wolves with 1 HellKnight

Note: Only Glows Green on Third Strikes, Multiple Shield Bash

Don't even think he will always does on third strike.

During his Quick Swing always damage him but cannot stun, also no heals during this action.

RED's HP - 25k
Each Phase Increase by 5k

This is Why "Slayer Must Die" Difficulty is harder than Ultra-Nightmare.

Who Knows what kind of RED's Stands using today during the combat. 

Rules -  No Extra Lives, Energy Shield down count as Loss.

If BLU Wins, RED Will Join on his adventure

If RED Wins, he will stay here and never helped BLU on his adventure

-------------

RED: Stand and Fight Brother.

BLU Made a Battle Stance armed with a trusty Super-shotgun

The Battle Between half-angel and half-demon has begun.

Oh, BLU wear Ruv's outfit.

BLU and RED Circling Around while dashing each places, RED Swing his sword twice, BLU Avoid 2 attacks by dashing left and right, As out in melee range, RED Summoned 2 Wolves and 1 HellKnight to get away from BLU's cqc.

BLU Dash away from 3 enemies and using the Ballista Destroyer mode to wipe 3 enemies at once, BLU receive damage because he didn't see RED's Shieldbash attack and receive 2 up and down slash by a sword.

Energy Shield - 129

BLU: Agh! oh that sparks..

BLU was sent flying and Hits the wall, he got off and return to his run-n-dashing pace. He is still far away from RED while hes trying to shoot BLU Down intended to chip away his remaining energy shield. BLU Try his best to avoid getting damage.

BLU Dash Left and avoid RED's Grenades till he saw RED's Shield bash, BLU Dodge once and he saw 2 grenades on each side and saw another shield bash, RED was trying to corner BLU, as RED Does a dash shield bash, BLU Avoid it by rocket jumping using a rocket launcher detonate mode.

in Midair, BLU Switch Rocket Launcher mode to Lock-on. Turns out RED can do 3x Shield bash and BLU Is out of Dash Time and can only refill by staying on the ground.

BLU: piss..

BLU Got Hit by RED's Shield Bash again.

Energy Shield - 12

BLU was Staggered for a moment, RED was too close to BLU and brought out his giant sword.

BLU Dodge Side strikes and down strikes, as RED Sees an opening, He does Third attack and glows green.

BLU: Your wide open!

BLU Using Heavy Cannon Precision Bolt, Quick Scope headshot on RED and Stun him for short period of time by smashing the ground using the sentinel hammer. BLU Unleash The Chaingun Sentry mobile and barrage shot him, after 5 seconds He Hits RED with 2x Bloodpunch. Few Hits are Crits.

RED's HP - [-                                                               ]

RED was down and BLU went close to him and punch him once.

RED: not bad at all.

RED Enter Phase 2

[RED's HP Increased!]

RED's HP - [-------------------------------------------------------------------]

BLU's Energy Shield - 56

5 Energy shield increase per second, RED Summons Demon Squads at the start. Shooting multiple grenades on BLU's Feet, He Jump away and dash on front of the demon squad, Smash it down on the ground with sentinel hammer to wipe the demon squads instantly.

RED Swings Side and up attacks only and avoids get close to BLU's Range. 

RED: argh! Just Let me Finish you off!

RED Shoots 5 Grenades scattering around and do shield bash once, BLU Avoid it and RED Attacks, BLU Avoid 2 attacks by left and right dash, RED Does another green glow, BLU Quickly Shoots it with a Super-Shotgun and Stun him for 3 seconds, Sentinel Hammer on Cooldown but the Combo weapons really deal his HP down to 10%.

BLU Combos, Lock-on Rocket Launcher + Shoulder grenade, Ballista Shot and Super Shotgun.

RED's HP - [--------------                                                                                      ]

RED: I will not lose just like the last time again fairly!

RED Side Dash while shooting small barrage of red orbs.

As RED Get Close to BLU, RED Do Upslash but receive damage from a quick scope of heavy cannon precision bolt, RED Attacks again with Downslash, BLU Do Last Shot with a Super Shotgun.

RED's HP Deplete to 0 and BLU Punch RED's Face again.

RED Enters Final Phase

RED's HP - [-----------------------------------------------------------------------------------------------]

Sentinel Hammer Cooldown - 15 seconds

BLU's Energy Shield is back to 300

RED Summons 5 Marauders to assist on battle.

5 Marauders charge at BLU, BLU change The Chaingun mode to energy shield and switch weapon back to Super Shotgun. 3 Marauders get close to BLU and glows green at the same time, He shoot at them at the right time while withstanding 2 range hits from 2 marauders away from distance and 3 hits from RED's range attacks. BLU Shoots Rocket Launcher once, combo with super shotgun and freeze grenade, BLU eyes were wide that RED's Summons cannot be frozen. 

RED Summons Demon Squads + 2 wolves and 1 hellknight. BLU was force to use the sentinel hammer and wipe half of RED's Summons. Only Summon Elemental Pain and 1 Marauder.

Wolves does not drop sentinel hammer charges.

BLU: ಠ﹏ಠ

BLU will have to wait for 15 second to use sentinel hammer again. He Quicks-cope on Elemental pain and use super shotgun meat hook to pull himself towards it and finish it with a bloodpunch on Elemental Pain. BLU Get close to Marauder's Close range but RED use shieldbash towards BLU. He Avoid RED's Attack except Marauders axe swing.

Energy Shield- 234

BLU Panic as he saw RED's Another Shield Bash. BLU Quickly Switch chain gun and activate shield mode.

BLU Withstand 2 RED's Shield Bash attacks by using chaingun energy shield mode and saved all of his remaining energy shield. RED Attacks 3 times and complete stunned by BLU's Super Shotgun hits and get hit with a Sentinel Hammer, The AoE Range kill the last marauder.

There's only one think RED Can't do

RED Cannot Random Crit.  the reason why RED's Large HP easily down to 1?

BLU With Genshin Impact Artifacts with 50.1% Crit Damage and 31.2% Crit Rate

BLU:

BLU Unleash the Deadliest Combos, BLU Shoots 2 Sticky bombs with 1 Crit, Lock-on Rocket launcher, Shoots 3 Crit rockets, Basic Ballista Blast + Shoulder Grenade with Crit, 1 Crit Super Shotgun Blast and 2x Pure Crit Bloodpunch.

RED's Hp - [-                                                                                                                                               ]

BLU Instantly Beat RED In a blink of an eye. RED's HP Deplete to 0 and BLU Finish him off with a punch

BLU's POV

BLU wins again.

BLU: Okay, I technically won, so get out of that suit right now.

BLU Walks Over Knock Out mech and Knocks it like knocking a door.

No Response.

BLU: Brother, get out of this mech.

The Hatch Open and reveals Nothing, As BLU heard a random secret door open, RED was wearing some classic home dress style listening to the music wearing earpods while playing the mobile game. you can see the remote control on his hips, it says Auto-pilot.

RED: whazzup.

BLU: wai- I thought your inside of that thing?

RED: Oh.. i was busy playing mobile game until you came here and i really have much no time dealing with you so i bring it with auto-pilot mode.

BLU: You mean.. This Thing is Auto-pilot!? For the Whole Time!!

RED: yeah, atleast you've won though ^_^

BLU: ಠ_ಠ

(Time Skip)

Location: Serenitea pot

Kayden Returns back to the previous world now. he went through the door entrance and the girls already heard the door open. they rush out of the room and saw Kayden return but wearing different outfit. Weiss and Yang was on the second floor waving at me and jump down on front of me, Akia appeared on the pillars and Neo appeared out of thin air, Fay was accompanied by Noelle in guard and stand on front of Kayden.

Noelle: welcome back, my master.

Weiss: your finally back!

Fay: daddy!

Fay Hugged Kayden.

Kayden: hello my little flower, how are you doing?

Fay: I feel happy :D

How Sentimental

The Girls heard a Familiar voice except Fay, Noelle and Akia.

Akia: Who's There?!

A Entrance door slowly opened and reveals Kayden but the color is different.

RED: you know what i haven't been this choked up since i Got a Hanka Musaka Caught on my Throat, ah?

-----------

All the Girls taking a Bath in one room, design for only girls. while fay was sleeping on her own room.

Yang: hey um.. havent we tried to sleep BLU on the same bed.

Weiss: we did it like twice, The shields around him always protect himself like that.

Neo Nodded with a grump face.

Akia: Aside from that, Who is that person who looks like the same as him.

Weiss: he has a same name but we call him RED. Yang and Neo know him as well thought, but they look like an actual twins.

Noelle: red?

Yang: yep. I Still don't like him, but I only Love BLU.

Weiss: same. 

Akia: I also Love BLU as well.

Noelle: what kind of relationship between RED and BLU?

Yang: oh they're like brothers tho-

Then a Sudden Scream coming from the other side of the room

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

NO! WHAT ARE YOU DOING?! THAT'S NOT HOW YOU DO IT!

Its Glizzy!

WHY YOU MESS UP EVERYTHING?!

What's Wrong with it.. THERE'S NOTHING WRONG WITH IT?!

*Gibberish Noise*

Its Glizzy!

*Glass Break Noise*

JESUS! WHAT ARE YOU DOING?!

*Grenade Explosion*

STOP THROWING STUFF!

WHAT'S WRONG WITH YOU?!

I DON'T KNOW I JUST MADE HOTDOG

*Footstep Noise 5x*

WHERE ARE YOU GOING?!

THAT'S NOT HOW I RAISE YOU?!

BLU entered the wrong room, The Girls Wave at BLU with a smile.

BLU: (ㆆ_ㆆ)

RED Pop behind BLU and the Girls Immediately cover somewhere.

RED: #ಠoಠ#

BLU: GAH!!

BLU Shut The Door 

I DON'T UNDERSTAND!!

WHAT IS YOUR PRO- WHAT IS YOUR PROBLEM!?

HOW IS YOUR HOTDOG ON Y-AXIS!?

*Metal Clang*

MAYBE I START THROWING SH*T TOO I GUESS?! WHAT ARE YOU DOING?!

*Metal Clang*

FUUUUUUUU-

*Loud Bang Noise*

DAAAAAAHHHHHHHH!!!!!!!!!

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Akia: Does his twin always normal?

Weiss: Yep.. 

← To be Continued

For Those who doesn't know about RED

He has a same look as BLU But Opposite version.

---------

How Dark Lord Fights in Actual game with hard mode

https://youtu.be/6kZcSWrrN9g