Supergirl Z: The Growth and Maturation of a Superhero

Superspeeder

She was one of the last of her kind, he the last of a world long dead can these two work together to save what's left while growing as a superhero?

Supergirl/Dragon Ball Z Crossover Kara D./Supergirl/Future Trunks

Romance/ Drama

Disclaimer: Supergirl is the property of DC comics Dragon Ball, Dragon Ball Z, Dragon Ball GT and Dragon Ball Super (feels good to write that) are owned by FUNamation, Toei Animation, and Akira Toriayama I DON'T OWN THESE CHARACTERS MKKAY

Chapter 1- Who are you?

She was bleeding heavily from her battle with her aunt Astra. Kara Danvers (aka Supergirl) was losing this battle and her sister Alex wasn't fairing much better. "Give up little one" Astra sneered "you foolishly aligned yourself with the human race and are wearing the symbol of the house of El THE HOUSE I HATE!." She screamed the last part like a siren singing her deadly song Kara had to cover her ears from the noise. "At least I protect what I love, you on the other hand are a symbol of a world long lost to us [1]" she declared boldly while trying to recover. "I TRIED TO SAVE OUR RACE, AND YOUR MOTHER PUT ME AWAY FOR DOING SO NEICE [2]" Astra yelled. Alex spoke weakly "come on Kara you can beat her". However, Astra grabbed Kara choking her "nice try but you will never beat me and by the way say hi to mom for me." Just then a stranger interrupted "Don't you know" he said "that it isn't nice to pick on a helpless person." Astra put down Kara immediately to look at the man and from his purple haired appearance and the strange logo on his shirt (A/N guess who) surmised that this was one of her "human friends" Astra laughed "Kara can't defeat me so a human tells me what to do?" she asked. The stranger glared harshly "I'm only saying this once release the girl." "Or you would do what" Astra replied "you can't hurt me only my niece and anyone else who is kryptonian can hurt me."

Kara however was surprised and curious about the stranger, but she worried about his safety; "who are you? You shouldn't be here it's not safe" she said. The stranger however didn't look concerned "I'm sorry Supergirl but my name must remain a mystery, and I can take care of myself" he said. Supergirl was shocked "how do you know my superhero name?" "Publicity I guess, your name is well known and I came to see if the rumors about you were true" he said. Astra however wasn't happy, "I hate to interrupt but you have no right interfering with my business with my cousin" she said. "It's my business if the people you intend to kill are innocent" the stranger replied harshly. "What gives you a human to right to defend other humans?" she asked. The stranger replied "I'm not a 'human' I won't tell you what I am but if it involves innocent lives then I must fight to defend them; I WON'T LET YOU DESTROY THIS WORLD!"[3] The stranger screamed and transformed instantly.

Alex and Kara were thrown back by the force of the transformation; Astra however looked unimpressed "What difference does changing your hair color do? I'll admit I never seen anything like it, but changing your hair color won't matter." "I've had enough of talking" the stranger spat "let's fight" and charged at Astra with a punch to Astra's midsection. Astra had experienced some pain with the fight with Supergirl but it was nothing to the stranger's punch; she felt like a train was running over her. Astra quickly realized that this man was not playing around and fought back but she didn't the stranger but rather thin air. "Too slow!" the stranger mocked. Astra was furious! How can a stranger dematerialize into thin air; granted she had superhuman powers but this was something entirely different. "GRR take this" Astra roared and used her x-ray vision as an attack; the stranger simply took it head-on and wasn't harmed by it. "Is that the best you can do?" he taunted. 'This is going to be harder than I thought' Astra thought and started to spar with the stranger on the ground. He managed to match her move for move and decided to take this fight to the air. "What?" Alex exclaimed "he can fly but how only kryptonians can fly" "Whatever he is, I hope he's on our side" said Kara.

Meanwhile Astra was surprised at the stranger's power of flight, "interesting" she commented "I only thought kryptonians under the power of the sun can fly". "Sorry to disappoint you but I've worked hard and went through hell to obtain the power I possess, the only person I can think of that even has used the power of the sun was a friend of mine against a tyrant like you." "Oh so you have experience against kryptonians like myself?" Astra asked. "Not exactly, this is the first time I have engaged whatever a 'kryptonian' is in battle, but even though you are my enemy I am excited to see your true power." 'He's not even scared and wants me to unleash my full power' Astra thought "fine if you want power take this" and unleashed a massively sized heat vision attack. "You can't evade this attack, its hotter than the surface of the Sun and Earth." she boasted cockily "I don't have to evade it" he said "I have to do THIS BURNING ATTACK" he screamed a fired a massive energy attack to counter her beam. "What his attack is just like my beam [4]" Kara exclaimed. "Let's just hope that his attack is stronger" Alex said. The attack was stronger and the force hurt Astra badly; at that moment swat teams came in under the leadership of Hank Henshaw (who was shape-shifting as a particular alien).

"Stand down" he said "we have the place surrounded". The stranger however wasn't happy "You're the one that needs to stand down; I have this battle in the bag." Henshaw (due to his connections) immediately recognized the symbol and paled significantly "are you one of that company's experiments? [5]" he asked. "No" he said "I am not but I know who you are and if you think that you can come after us think again." Astra (who had recovered) looked at the weapon that Hank said and snorted "this man and my cousin did more damage than your weapon will do." At this point, Hank stabbed Astra with Kryptonite and she seeing that this battle couldn't be won fled but not before saying "I'll be back and I will have my revenge" she vowed. The stranger walked over to Kara but Henshaw was apprehensive of what was about to happen "are you going to kill Supergirl?" he asked. "No" he said transforming back to his former appearance "Supergirl is hurt and I only want to help her" he said gently. "How can you help me you're the one that's injured" Supergirl replied. "I've been in worse situations" he joked "here take this for your health" he said giving her a small green bean. "What is this?" she asked. "This bean will restore your health, it's gotten me out of jams in more times than you can do it's the least I can do for a person who cares about this planet as much as I do." Kara looked skeptical but there was something about this man that caused her to trust him so she ate it and instantly her energy returned. "Whoa" said Alex "I've seen some pretty freaky stuff but nothing like something that can restore your energy." The stranger looked at Alex and Supergirl "well it looks like your aunt won't be attacking anything for a while, but I will advise you to keep your guard up in case of something else happening" he said returning to that stern voice he used against Astra earlier. Kara nodded "thanks for the help"; the stranger smiled at her making her blush "it's the least I can do see ya around Supergirl" and flew off.

"Wow what a guy" Kara said a bit out of breath; Alex looked at her mischievously "you like him don't you?" "What I don't have time to have a crush on some man." Kara said embarrassed that Alex would say that about her. Hank however looked concerned 'I don't like this, he knows too much about Supergirl. On the other hand, if I tell her about his "connections" then she will see him as a threat that must be dealt with.' Hank smiled to himself 'yes' he thought 'if I tell her about the man she will be in my debt and won't come between me and my duties to protect Alex.' Meanwhile Astra was in the ship that carried her to Earth recovering with the scientist analyzing the weapon and telling her that it was a fragment that weakens her species. After telling her that she had underestimated the intelligence of the humans and that her plans for revenge would continue she told her scientist "that boy though with the golden hair made me experience pain not even my niece could do." The man looked interested "Golden haired boy?" he asked. "Yes he interrupted my fight with Kara and fought me himself and caused me pain especially that energy blast." The Man's eyes widened with fear "general I would advise you not to engage the boy in a fight its one you will lose." "WHAT DID YOU SAY" Astra screamed, "why do you think that I cannot win." "We are krytonian warriors but that man you fought is something entirely different my lady, I've studied this planet ever since we got here and trust me you don't want to fight this man he's a saiyan." "What do you suggest; that I train and get stronger so that I can beat him? And I thought the saiyans were murdered by that lizard; how is one still alive?" She asked. "No amount of training can do that I'm afraid" the man sighed "even if you defeated him he will only get stronger in return, however if his more 'sane' side is there than I advise you that we lay back and wait. Based on the way he defended your niece he may have feelings for her and we can use that as a weakness against the both of them Furthermore while it is true that the lizard killed most of the sayians, a few such as that boy's father were on other planets, so they were spared." "Well well you may be onto something; very well I will do as you say and leave Kara and that boy in peace for now. If Kara finds out about the saiyan race, then we can the animosity between my sister and those monkeys as a tool to divide and conquer. I'm not surprised; Allura didn't want her to be exposed to the atrocities that she and those monkeys committed and that is what we will use to make sure that Earth is safe from her and those monkeys."

End Chapter

Narrator: it seems like the mystery woman was none other than Kara's aunt Astra who had a beef with her niece due to her mother jailing her. However, a stranger interfered and thanks to him and some kryptonite Kara has defended the city for another day. But what about the identity of the stranger will Kara find out who he is or the secrets about his heritage? And when she does what will she do? And what about Hank and his 'promise' to Alex; can he retain his secrecy about his alien history? Don't forget that Astra is still plotting to get revenge on Astra; a storm is beginning to brew find out what happens next time on Supergirl Z!

Authors note: the quotes I have taken are from actual episodes [1] and [2] are from the second episode of Supergirl "Better Together"

[3] Is from the movie Dragon Ball Z: Battle of Gods (Goku said that to Beerus during his battle)

[4] Comes from Vegeta during his first battle with Goku on Earth (his galic gun verses Goku's Kameheha wave) during the Saiyan Saga