Lucky didn't waste any time and go to work.
He instantly used his newly obtained kekkai genkai and moved his bones so he could take out a rib.
It came out from his shoulder and was sharp like a sword.
Once he had the weapon his eyes held a dangerous glint as he scanned the battlefield.
They didn't even notice him as they were too busy.
Of course while mainly everyone didn't notice there were a few sensor ninjas who felt an unfamiliar chakra that suddenly stopped near them.
Thus, they looked over and saw a kid holding a bone sword staring at them with a glint.
"WATCH OUT! UNFAMILIAR CHAKRA SIGNATURE THATS COMING FROM THE KID WITH THE BONE IN HIS HANDS!" One of the Kumo people yelled which startled both.
But it's war so they couldn't bother with him and hoped he would be killed quickly.
"Ahh~ I guess I'm already exposed but SO WHAT?!" Lucky rushed towards the nearest Dhinobi and sliced his head clean off.
And went right towards a group and with another bone emerging from his shoulder he wielded his bone swords and started going crazy.
It was hard for the enemies to focus on him as they were busy attacking the other side so it was easy for him to suddenly kill them from behind as they were distracted.
And with two bones swords it made it all the more harder for them to stop him as it just kept coming.
"Futon: Air bullets!" A shinobi from the hidden sand yelled as bullets made out of wind shot towards lucky.
"Tsk, there so many of them it's hard to dodge" he said after getting hit by one of them in his shoulder.
He decided his next target to be the wind user and went to him while trying his best to dodge and weave the wind bullets and quickly sliced his head clean off.
Blood splattering on his face which made him look like a white haired demon.
The rest of the shinobi who saw this knew they had to make sure they killed him and thus started using Justus to try and kill him.
"Fūton: Wind Breakthrough"
"Doton: Earth dragon bullet"
"Katōn: Fire dragon bullet"
Different types of jutsus were thrown at lucky and he knew the situation wasn't looking good.
While he can dodge maybe one of them but with more than 2 coming at him it'll definitely take a toll on him.
He is only a jonin who can at best fight a special jonin.
If he was at kage he would be able to easily defend against it but at a mere jonin? There is no way.
He knew that which is why he quickly looked towards Lucifer who knew he was in trouble and Lucifer nodded his head and released a jutsu to cancel out their attacks.
BOOM
The attacks connected sending a big shock wave through the area.
Which fortunately for Lucky gave him plenty of time to quickly hide and attack them from behind as they couldn't see anything due to the dust.
"Did we get him?" One asked.
"There's no way he could've survived that." Another said with certainty.
"That'll tea-" the last one was cut off as he suddenly looked down and noticed a sharp bone went through his chest.
"Impos-" he fell to the ground with his eyes wide open with confusion written all over them.
The other two quickly noticed that their comrade suddenly died and went into defense.
However it was too late.
Lucky was already behind them and with his two bone swords in hand quickly launched them into their chests, piercing through their hearts instantly killing them.
They too went down with disbelief on their faces as they couldn't believe he survived something like that.
Lucky didn't stop there as he lifted his hands and holes suddenly opened up from the tip of his fingers and little balls of hard bone shot out like bullets.
"Kekkei genkai: Ten-finger drilling Bullets"
The bullets that shot out were fast and while you may think you can withstand it you can't.
They shot through many of them who thought that but couldn't.
Many kept trying to come at him but due to the high amount of bone bullets shooting out they couldn't get close to him before being shot.
And even if they did get close his body suddenly sprouted bones like a porcupine covering his whole body.
"USE JUTSU! DO NOT ENTER CLOSE RANGE AS HE CAN EASILY DEFEND AGAINST IT!" A man yelled which woke up all who were focused on him.
By now everyone noticed this kid and knew it wasn't the time to fight.
They quickly released all sorts of attacks aiming for Lucky, who was getting a bit worried of how many jutsus were suddenly thrown at him.
'This is too much, okay? I'm just a jonin.' He internally cried.
Thankfully Lucifer quickly stepped in and blocked them all with his amazing strength.
"I suppose I'll step in now as they are your weakness." Lucifer said looking towards lucky.
"Sigh~" lucky sighed.
..
Lucifer POV:
I guess I should step in now. Now that they know his weakness it'll be easier for them to defend against.
Lucifer noticed that while lucky is invincible in close combat he is weak against jutsus. Especially when many are thrown at him at once.
That's why he stepped in and decided to help him out.
"You go for the close ones and I'll handle the others." Lucifer said, coating his hand in chidori and speed blitzing everyone.
He took out his scythe he received from the system and imbued his chakra in it which made it light up and he swung the scythe which created blades of dark chakra at the enemy leaving them no room to block it.
(It's like blade aura but instead its chakra you know?)
"DAMN IT! THESE GUYS ARE WAY TO STRONG!" Many yelled as they tried defending themselves from these demons.
But it was useless.
With Lucifer assisting luck they were almost an unstoppable duo.
Lucky with his amazing taijutsu which is impossible to counter when he's in your face and Lucifer with his kage level strength they were all but wiped out.
But suddenly a powerful presence was felt when a ninja who wielded magnet release showed up.
'It seems that's the guy.' Lucifer said looking at him.
'His power is almost kage level. While it's easy for me to kill him, luck might have a hard time.'
'Nonetheless it's a good training opportunity for him. If he can at least manage to stab him once it's already a great thing.' Lucifer thought while knowing the outcome.
"He's all yours lucky." He said to the determined lucky.
And so the battle between a magnet style user and a kaguya began.