Demon lords Voyage! (Tensura X OnePiece)

Invincible

Sitting on a pile of marine soldiers corpses, milim has already done what she came here for. Exterminating the celestial dragons that hurt her friends

'----does our journey in this world will full of blood like this? No. This is that kind of world, i'm wrong to assume that this world will be a lot fun-noda'

Even though killing this many innocent marine soldiers doesn't sit right with her, milim doesn't really bothered about it. After all, she is a demon lord.

Milim the stand up and went to loot all the available treasure in the ship, and as expected from the ship that carried celestial dragons

There's just too many valuable treasure. But something caught milim's eyes as she set her sight on a luxurious golden box

Without wasting anytime, milim went to take and open the box. The content in the box surprise milim

'this....is a devil fruit?'

The blue devil fruit with a spiky pattern can be seen inside. Just as milim keep looking at it, a bright suddenly shined from the island

'This light-----kizaru huh?!'

Milim then quickly take a bite of that fruit and went to the island as fast as she could, unknowing to her, the power she gained from that fruit is one of the most invincible power at the sea

*

"I really expect to my job here to be easy when i came to this island you know?"

Kizaru who got wounds all over his body said with a serious tone. After all facing rimuru cunning move, guy relentless attack and dagruel deathly assault is hard even for him

"Too bad for you huh? Kizaru"

Rimuru who is in perfect shape said with a slightly smug tone, after all as long as luminous is providing support, they would not go down easily

"Don't let your guard down rimuru. We still need finish this"

Dagruel warned, to this rimuru of course just nodded understanding

Kizaru then once again went up high into the sky intending to launch a large scale attack again. But rimuru, guy and dagruel got confuse as to why kizaru do such a useless thing again and again

"Yasakani no magatama!!"

Kizaru shout as the sky filled with light and raining down like a beam showering all of them below

Luminous who is getting ready to heal her friends suddenly went into panicked attack after realizing that her power has reached it's limit

"BE CAREFUL!! I CAN'T USE MY POWER ANYMORE!!!"

luminous's shout alerted all of them, the expression from rimuru can tell that he is clearly shocked and bitter

"Wh--are you kidding me!"

Guy mutter with a extremely unsatisfied tone.

Kizaru meanwhile just smile as he has expected this outcome, luminous who has been using her ability non-stop would have to recover too

As the rain of light beam began to approaching closer and closer, rimuru resolve himself to come back with a stronger avatar. After all, he know very well they wouldn't survive this attack

"But still--- we wouldn't go down without fight! Nihility slash!!"

*RUMBLE*

As rimuru unleashed his slash that infused with ryuo, a deafening thunderous resound throughout the sky

"This---thunder?"

Guy mutter confusely as multiple lightning streak can be seen approaching kizaru high in the sky

"Wild lightning nava!!"

"---!??!!!"

In that moment, a giant ray made out of pure lightning, crossed the entire sabaody island as it's clashing with kizaru attack

The impact between the two resulting a massive explosion!

*BOOM!!*

As the explosion began to subsided, kizaru then land on the ground while having a very bitter expression

"As expected from marine admiral. Such a destructive attack.."

Hearing the girl voice, kizaru narrowed his eyes while looking straight in front of him

*Zzzz*

Lightning crackle can be heard as the voice began to approaching him

"So the captain decided to show herself huh..? Plunder princess"

Hearing kizaru words, milim let out a small chuckles

"I'm still not used of this power. But it's enough i guess"

Milim mutter while looking at her hand who transformed into pure lightning

Rimuru who saw this from sideline got very confuse as he know very well who was the original user of milim power

"Isn't that goro goro no mi (rumble rumble fruit) power...? Enel is supposed to be still alive....so then how?"

<<Answer. I unalived enel, i deem that he is not really relevant for our journey in the future but his power is something we need>>

"Is that so.......but that's true, we want to travel the sea. Not to the moon"

<<Plus, i've done a multiple change of this world. Most of them doesn't really effect the main character or our journey>>

Rimuru then understand what's going on, hearing his wife explanation is more than enough to grasp the situation right now

"Sigh...milim got such a nice power, i'm jealous. I want a cool power too!"

<<Yes. I will proceed making the most-->>

"Stop!! Stop!! I take back what i said!"

While rimuru is busy with ciel, the atmosphere between milim and kizaru got really intense

"So what now kizaru? Do you want to continue?"

Milim asked with a excited tone

"Hm~and what if i do?"

Milim then grin devilishly as she thought of testing her new power

"Now that i'm here, if you want to continue. Your objective is no longer to win or capture us--"

The air around milim began to tremble as the spark around her body began to become violent again

"But try to survive from me"