Goku flew down and landed near everyone. Nero flew up to face Beerus. They both stared at each other. "You know what Beerus i'll show you my Ultimate Form that way you'll know what a king looks like." Nero transformed showing off his form surprising Beerus and Whis.
"Lord Beerus you can't fight him. It will destroy the universe if you do." Nero smiled and said, "I have a solution to that if you all want to see our fight group together." Everyone hurdled together and Nero used "Kamui" to bring them all into his own dimension. "Here we are safe to fight."
Nero got into his fighting stance and Beerus did too. Nero rushed at Beerus and threw a punch his fist getting close to Beerus and disappearing when Beerus dodges. His fist hits Beerus in the stomach sending him flying. Beerus stops himself and holds his stomach. Nero appears again and kicks Beerus in the head causing him to be sent flying again.
Beerus gets serious and goes into his UI state and rushed at Nero. They both clash and release a shockwave destroying everything around them. Whis protects everyone in his shield from the destruction. Nero and Beerus exchange blows neither giving an opening to the other. After awhile Beerus launches a "Hakai" towards Nero which he kicks back to Beerus like a soccer ball.
Nero grins at Beerus and laughs. "Let me stop playing around with you. I'll use 5% of my power now. Are you ready Beerus?" Beerus frowned and asked, "What were you using to fight me at 100%?"
Nero's grin widened. "I only used 1%." Nero unleashed 5% of his power and targeted Beerus with all the pressure that came out with the release of it. Beerus got on one knee and couldn't move. Whis was shocked to see this happening.
Nero pulls out a godly looking sword and raised it up making lightning and black flames cover the edge of the blade. He then infused Hakai energy into it making the sword glow purple on the rest of the blade. "Excalibur the sword of god. Beerus this will hurt a lot." Nero disappeared and cut one of Beerus ears off causing Beerus to yell in pain.
Whis steps in and tells him, "That's enough please stop you two." Beerus holds his head where his ear used to be. Nero smiles and reverts back to his base form. "Sorry for the flesh wound Beerus." Beerus frowns and stays quiet.
Nero takes them all out of his dimension and back to earth. "I request two things from you two. #1 take Goku and Vegeta and train them to get stronger. #2 When the time comes for any tournaments pick me first." Nero looked at Beerus and Beerus nodded.
Goku and Vegeta went with Whis and Beerus they also left with a sack full of food. Nero and Co. continued on with the party which ended with Bulma and Nero training more. Nero rubbed his head and said, "Why does it feel like I'm forgetting something?"