(I'm bad at writing fight parts but I'm trying my best with this. Also this might be a little brutal  or Gorey...I Don't really know....

But anyway I am very sorry in advance for hurting them 🙏😭)

The Mafia demons immediately tried to attack Diavolo but he threw them away like they were nothing and immediately went after the Demon Mafia Boss throwing them away from Mammon and quickly getting Mammon up and running off with him.

Mammon : what's the plan!?"

Diavolo : I have to stop them!.....but I have to make sure your s-

Mammon : No!"

Mammon then stop them and said.

Mammon : not like I fly back hurt like this anyway. Since I can't leave I might as well fight to....my family won't be safe...."

Diavolo : I can't let you get hurt...."

Mammon : I will do whatever it means to protect my family. And if that means fighting I'll do that."

Diavolo : I'm sorry for everything...."

Mammon : it's ok you Don't have to say that anymore...."

After this they ran back to fight not knowing how this was going to go down or end.

Immediately they were getting attack from every side. And these demons were different
and they had weapons that seem to really hurt Diavolo and Mammon. Something was very off.

Anyway they ended up getting split up for up during the fight. And in one part as Mammon was running around fighting or trying to get away.

He stop dead in his tracks and screamed in pain and agony as two magical purple chains pierce his wings wrapping around them like a hook.

and standing a few feet behind him was the Demon Mafia Boss the purple chains just coming out of his hand that was glowing purple fire. This guy had crazy powerful magic that Mammon never seen before.

Demon Mafia Boss : one move and you'll be in a world of pain"

Mammon : ......so is your plan to kill us and take over? Is that it?...."

Demon Mafia Boss : your smarter than you look"

Mammon : you can't honestly believe you'll get away with that do you?"

Demon Mafia Boss : I already am?"

Mammon : ......heh....your right... this is real going to hurt ...."

Demon Mafia Boss  : wh-!?

With no hesitation Mammon ran off  breaking free and continued to fight and attempt to try and fight the Demon Mafia Boss.

Even with his wings being torn off of him he couldn't feel the pain all that mattered was stopping this guy.

Meanwhile on the other side of the yacht Diavolo was fighting through demons trying to get back to Mammon until suddenly he felt an incredible amount of pain in his back and felt to his knees the pain taking his breath away.

He then notice his back started bleeding and saw two of his wings on the floor next to him. He didn't understand why they suddenly fell off but got worried about Mammon.

But suddenly he saw Mammon fighting and saw his Demon wings were gone and he was badly injured but still fighting.

And as Diavolo tried to get up he was knocked to the floor by the
Demon Mafia Boss and was held down by others demons.

Mammon was also being held back and the Demon Mafia Boss kneeled down in front of Diavolo.

Demon Mafia Boss : I told you I won"

Mammon : someone like you will never be able to rule Devildom!"

Demon Mafia Boss : if the is gone including his family relatives can also take the thrown"

Diavolo : what...."

Demon Mafia Boss : he couldn't get rid of me Because he couldn't get himself to kill his own Brother"

Diavolo couldn't believe it he couldn't believe his father had a brother. He realized he probably would've never know Because his father never really talked to him. Anyway now he didn't know what to do.

Demon Mafia Boss : would you really kill family my young nephew? Think about that would upset you deadbeat of a father!"

He started laughing at Diavolo and Diavolo had no clue what to do. He had to do whatever it means to protect Devildom and everyone else but this made it difficult.

Diavolo : .....I.....I...."

Demon Mafia Boss : you've tried so hard to be good even though your a demon. It's really pathetic. As ruler of Devildom you have to make difficult choices you can't be king and be good. This is a kill or be killed world. And I think I'll do a better job at it. Better than him and you!"

Diavolo : .... you'll never be king.....as long as I live I won't allow it!"

Demon Mafia Boss  : that's good Because you won't be alive anymore"

And just before he could kill him.

Suddenly everyone showed up and started immediately fighting all the Demons getting them away and off of Mammon and Diavolo.
And during this the Demon Mafia Boss ran off and Diavolo ran off after him.

He couldn't let this guy get away but more demons were showing up and could heard and see everyone struggling a little then suddenly a storm started forming out of nowhere and the last thing he saw was Lotan who attacked the yacht.

After this everything went black.

An hour later or so Diavolo suddenly woke up on a beach and as he sat up he was immediately hugged almost knocked down by Mammon. Who ran over to him falling to his knees to hug him.

Diavolo : what happened?"

Mammon : .....they showed up.... everything is fine now ....they got the demons and the guy....."

Diavolo then looked at him and asked checking to see if he was alright.

Diavolo : are you al-!?

Mammon suddenly kissed him which shock and surprised Diavolo but kissed him back and hugging him but not to tight.

After this they both just lay down on the sand and looked at the sky and started laughing for no reason. Which hurt very much doing so Because of how badly they were hurt.

Mammon : heh....guess I get why it's so important for you to stay king"

Diavolo : ... Don't let this effect y-

Mammon : I want to be with you..... Because....I love you...."

Diavolo : heh.... I'm glad you do...."

Mammon : ..... I'm tired...."

Diavolo : so am I....after I get everything done....maybe we can take a break? We could show Kammon the garden?"

Mammon : yeah. She'll like tha-!?

Suddenly they heard a baby crying.........