"What is Wonder Woman doing in my apartment?" Kara asked, since she recognized the legendary heroine from the stories she'd read in her high school history classes about World War I and from the heroine's more recent activities, since a few years after she'd landed on Earth, Wonder Woman had come back into the public eye.
"I'm here as a favor to your cousin, since he doesn't trust the DEO and from what I know of them, I think he's right too. He'd rather I teach you how to fight in ways even he can't and honestly, it would be my honor to train the first female superhero this planet has seen since me. Especially since it reminds me of training with my sisters back home. Even though I'll likely never see them again." Diana said.
"What do you mean?" Kara asked, since she could tell that Diana was revealing this information to her to help Kara trust her.
"While my home island of Themyscira still exists, I can never return there." Diana said.
"Why?" Kara asked and Diana sighed.
"Because I broke one of the oldest laws on the island. I allowed myself to fall in love with a man." Diana said.
"I don't understand." Kara said and Diana chuckled.
"I wouldn't expect you too, since not many are familiar with the customs of my island, but men were forbidden on Themyscira on the orders of the old gods, our island's magic prevented them from finding it, until one day, a man did find his way to our island. His name is Steve Trevor and to this day, I still don't know how or why he was allowed to find us, but he did. He was a pilot in the air force but his ship was shot down and he crashed on Themyscira. I was the first one to find him and rather than let him die like most on my island would have, I chose to use our technology to save his life, though my mother, Queen Hippolyta, decided to lock him up instead of allowing him to leave peacefully, since the island's magic would've prevented him from disclosing our location. After that, since I'd already developed a fondness for the world of men since my first exploit there during World War I, I chose to free him and help him escape. My mother, as you can imagine, was not pleased." Diana said.
"But she allowed you to return after World War I?" Kara asked, confused and Diana smiled.
"That was different. The only reason I was allowed to intervene in man's war was because it was at the behest of the Gods to stop the rogue war god Ares from plunging humanity into an endless war and the whole reason I was created was to be the weapon that stopped him on Zeus's orders himself. My mother did not like it, but she allowed it, since she knew it was my purpose. But this time, she saw me as choosing the world of men over my own people, even though I never wanted to choose to begin with, but she forced me too. Especially since I'd been disillusioned by how warriors like the Amazons were fit only to hide from the world anyways, so I chose love and Steve. My mother and I had a very angry fight about it and she told me that if I left, then I was no longer her daughter and that I would never be welcome on Themyscira again." Diana said, tears coming to her eyes as she thought about that.
"Do you regret it?" Kara asked her.
"No. I have found more purpose in life since I returned to the world of men than I ever did on that island and I have found true happiness with Steve through Aphrodite's grace. It was a hard decision, but I know in my heart I made the right one. But the reason I'm telling you all this is so that you can better understand me, since I know you can't train under someone you can't trust. The only other people who know these details are Steve and your cousin, since Clark investigated me when I resurfaced to ensure that I really was who I claimed to be. We've worked together a few times and we're good friends. If he didn't have Lois and I didn't have Steve, I think we might've even tried dating." Diana said with a smile.
"And I will be teasing him about that later. But anyways, I'd love to have you train me, since honestly, I feel more comfortable learning from you than I do from the DEO, since I'm not exactly thrilled with them at the moment." Kara said.
"Excellent. It's a good thing we both fly, since you live here in National City while I live in Washington DC." Diana said.
"I actually have a base that we can train in that's probably one of the only places on the planet that could handle both of us training against each other at full strength." Kara said and Diana nodded.
"I'm eager to see this place." Diana said and Krypto barked.
"Yes Krypto, you'll be coming too. I think you'll like it." Kara said and Krypto barked happily, since he seemed to like this new person.
"And a word of advice, don't follow your cousin's example in doing this alone. The life we've all chosen is lonely enough. Surround yourself with people you trust and never take them for granted." Diana said and Kara nodded.
"Thank you for your advice Diana and I look forward to learning from you, since it sounds like I'll be learning from the best of the best." Kara said and Diana smiled.
"Your cousin and Batman might disagree with that, but between you and me, it's true. Now, I need to get going. You should come by DC sometime." Diana said.
"Maybe once the world has had more time to get used to me. But here's my direct line so we can keep in touch to set up training sessions." Kara said as she quickly wrote the number down and handed it to Diana, who returned the gesture with her own phone number.
"I look forward to training you, Kara. I promise, by the time I'm done, Superman will be asking you for lessons." Diana said.
"I have no doubt." Kara said happily as she and Diana shook hands again before Diana kind of stole her move by flying off her balcony.
"I think that this job just got even more interesting. But now, it's time for bed, since I have a shareholders' meeting tomorrow and even us aliens need sleep." Kara said to Krypto, who barked in agreement before Kara headed to the bathroom to shower and start her nighttime routine, since today was certainly more exciting than she'd expected and honestly, now that she'd put on the cape, she had a feeling that her life would only get more exciting from here on out and she couldn't wait.
The history Diana gave is based on the DCAMU movie Wonder Woman Bloodlines, since I've started watching those movies recently, since I was already a fan of their successor movies, the tomorrowverse. I hope you liked it and like the idea of Diana being Kara's mentor.