Chat Noir Beyond - A Miraculous Ladybug and Batman Beyond crossover

Patrol

(Adrien POV)

I had just finished work when the class was leaving. I saw Matt and Mari exchanging numbers. Good to see Matt finally trying to get a girlfriend. Me and Terry are gonna tease him. The five of us loaded into the limo and headed for home. Once there we met up with bruce in the batcave. 

"Great job at work, dealing with the class." he said. 

"Most of them are quite annoying, exept for Mari" said Matt.

"That's because you love her" said Terry in a sing song voice. 

"What?" said Matt as his face went red.

"Matt and Mari, sitting in a tree. K-I-S-S-I-N-G." I sang.

"Shut up, it was only once." he said, before realising what came out of his mouth and slapped his hand over it. 

"OMG, YOU ACTUALLY KISSED HER." said Terry. 

"Way to go Matt" I said as I pat him on the back. 

"As entertaining as this is, we have patrol to prepare for" said Bruce.

"Mind giving me a spare communicator. I want to swing by Mari's and ask if she wants to help." Said Matt. 

"Course you do." I said. "She is Ladybug, and that could help us tonight should anything happen. Although we should probably tell her we're the bats. She knows how to keep a secret" 

"Agreed, an extra pair of hand is always a good thing" said Bruce.

"Then let's suit up." Said Terry. 

Me and Dana transformed while Terry and Matt went and changed. Max sat next to bruce at the bat computer.

(Timeskip.)

I landed at Mari's window sill. 

"Hello, M'lady" I said. 

She jumped and wheeled around only to relax when she saw it was me. 

"Jeez Chat, you gave me a heart attack." She said. 

"Sorry, used to being sneaky. Me and the others wanted to know if you would like to join us for patrol." I said

"Others?" she asked. 

"Omega, Batman and Robin. They know your Ladybug and want to know if you would like to join us. Especially Robin" I said. 

"Um, Okay I guess but why does Robin want to see me?" she asked

"He'll tell you himself, now transform" I said.

"Wait, why do you have the aura of a guardian?" asked Tikki.

"I am one. I got my own miracle box. Actually, Omega has the wolf miraculous." I said. 

"Cool" said Mari. "Tikki, spots on"

She transformed and we raced into the night. On a nearby roof top we met up with the others. 

"Well Mari, I'd like to introduce you to the Bat family." I said. 

"I'm Omega but you met me earlier as Dana."

"I'm Batman of course but you also met me earlier as Terry."

"And You met me earlier beautiful, Matt at your service" he said with a bow. He's learned from me. 

"Good to see you again Matt." she said as she gave him a hug. 

"There's one more familiar voice along with someone you don't know that want to introduce themselves" I said as I handed her the earpiece. She put it in her ear and I immediately heard Max start talking. 

"Heya Mari, It's me, Max." She said.

"Nice to talk to again" said Ladybug. 

"And I'm Bruce Wayne, the original Batman. Please to talk to you" He said. 

"Nice to talk to you as well" she said.

"Let's start patrol" said Terry as we all took off.