I don't know much about Justice League or anything but I watched and finished season 1 and 2 of young justice. So I think I qualify. Takes place after the defeat of the robot that Meg mistaken for Red Tornado.
Kagome
This part is boring but necessary. After this paragraph more interesting stuff will happen.
She was not happy. After the final battle Sesshomaru had joined the Justice League to fulfil a promise to Rin. And he had dragged Kagome along with him. Kagome was wearing a large cloak that covered everything but her face which was covered by a mask. Underneath her mask was Sango's gas mask. Underneath the cloak was a demon slayer outfit with black guards. She had a silver charm bracelet, each charm had the power to expand into the original weapon. Kagome was standing in front of five teenagers around her age. Well the looked around her age. Kagome was five hundred and fourteen.
"This is Perfect Killer's student (according to sesshomaru mean perfect kill or something similar in japanese). He will be joining your team." said Sesshomaru. This was something Kagome did not like. She was done with saving the world and done with all the death and blood.
"Hi, i'm Wally." said a redheaded boy he zipped up to her. "Mind showing me what's underneath that mask?"
"No." replied Kagome.
"Sorry guys I tried."
"Nice to meet you i'm Dick." said a boy with sunglasses.
"Welcome to the team i'm Kaldur." said a tall boy with blondish white hair.(Aqualad)
"We don't need anyone else." a tall and broad boy said. He looked like Superman but a younger version and he didn't seem happy.
That was the opening Kagome wanted. She didn't want to save the world again, or make new friends. She was happy with her life. "Well I guess that's my cue to leave." said Kagome. She started to walked to the exit until she felt a iron grip on her shoulder. She looked up to see her Sensei glaring down at her.
"You will stay here and you will join the team." Sesshomaru said firmly. "This is not only for the earth's benefit but yours.". The final battle had ended, but at a high cost. The ones of her friends(Inuyasha, Sango, and Miroku. They left Shippo behind so he was safe.). They had finally gotten the Shikon and Kagome decided not to make a wish.
"Fine. So where do I go?" she asked.
"They will show you to your quarters." and with that Sesshomaru left.
"Where Megan?" asked Wally. "She must be glad to have another girl in the Cave."
"The Cave? Is that what this place is called?" asked Kagome.
"Yes, this place used to be the Justice League's hide out but it's was later discovered." explained Robin.
"So where will I stay?" asked Kagome.
"Oh here i'll show you." replied Wally.
"While you're at it's can you show him around? I'll go try to find Megan." said Robin. After a tour around the Cave he led her to her room.
"And this is the living quarters." said Wally. "After you get unpacked come to the kitchen. Dick just told me that Meg got back". Kagome nodded and Wally zipped away.
She went into her room and locked the door behind her. Kagome took out her clothes from underneath her cloak and packed them into drawers and shelfs in the room. There was a simple bed, nightstand, shelf, drawer, lamp, closet, and desk in her room. Then she placed some pictures of her friends in the nightstand next to her bed. It's wa nice to have all that weight off her shoulders. It's wasn't like everything was super heavy, it's was just getting annoying with all the items pressing against her body. Kagome laid on her bed and stared at the ceiling. This room will need a makeover. She made a mental note to go to the department store and buy some decorations. She walked out the door and made her way to the kitchen seeing a green girl talking with some of the comrads.
"Hi i'm Megan." she said once she flew over. "What's your name?"
"Shikon."
"No, no , silly. I meant your real name, not superhero." she said.
"Kagome." she mumbled.
" What? I'm sorry I couldn't hear you sorry."
"Kagome.' she said still mumbling but a bit louder this time.
"Sorry, i still can't hear you." she said creeping up closer.
"He said Kagome Megan." said Superboy he could hear her discomfort for he had super hearing.
"Oh that such a nice name!" Meg excaimed. "Where do you come from?!" she asked. Megan wa starting to sound like a ignorant tourist unaware of Kagome discomfort. Everyone else could see now Kagome was squirming but she didn't blame Meg. she was new to earth after all.
"Meg I think thats enough. You making him uncomfortable." said Kaldur. Kagome silently thanked him.
"Why don't you take your cloak off, it's hot in here. Plus we're all friends there nothing to worry about." said Wally as he sat in a chair.
"If you insist." Kagome unclasped her cloak and let it's drop to the floor. Everyone's eyes widen in surprise.
"Ummm Kagome?"asked Robin.
"Yes?"
"Are you a girl?"
"Yes."
"What?!" all this time they thought she was a boy. KAgome could just scoff at this incompetence.
"Yasss another girl!" Megan cheered.
"Now I want to see your face even more." said Wally. Everyone just rolled their eyes at his statement.
"Could you pleeeeseeee show us your face." begged Megan.
"Megan, we are superheroes. We all have our secret identities. If she doesn't want to share she doesn't have to." said Kaldur.
"Oh i'm so sorry. Hello Megan! Earth is different." said the martian girl gently hitting her head.
"No it's fine. It's not like I have a life other than this one." said Kagome emphasizing 'have'. Kagome took her first mask off and revealed her eyes.
"Holy shit she has another mask on!" yelped Wally. Kagome just rolled her eyes and untied the ribbon attached to the gas mask.
"Oh wow." said Robin unaware that he just said what everyone was thinking.
"Heyy gorgeous. How you doing?"
"..."
"Ok never mind."
Looks like things will change for our time traveling Miko.
I might or might not continue this series.