Astraea Smythe/History

The Galra-Altean War
In the Final Attack against Altea, Astraea and Nyx were taken to the Castle of Lions along with her Uncle, Princess Allura and King Alfor. She and Nyx were placed in a Cryo-Pod along with Princess Allura.

The Rise of Voltron
Ten thousand years later, Astraea was awoken from cryo sleep when five humans arrived at the Castle of Lions with the Blue Lion. She was caught by a human with black hair wearing a lot of red. She later learned his name was Keith.

While the others were getting the Green and Yellow Lions, Astraea talked with Keith and learned they had similar things: both lost their parents and were very much into sword-like weapons. When the Red Lion's location was revealed, Astraea wanted to go and help. Unfortunately, her uncle and Allura both strongly disagreed with her going. In the end, she went and was a big help, especially for Keith. She fought some of the Sentries while Keith tried to bond with the Red Lion. She watched in awe as the Red Lion chose him as its Paladin.

She didn't join much for the battles, usually staying on board the Castle and helping from there. When her healing abilities became more recognizable, it was decided she would be the Healer of the team, allowing her Uncle to take care of the Ship.

Around this time, Astraea came to realize her feelings for Keith, but, scared, kept them to herself. It was only when she injured so bad that Keith ended up realizing his own feelings. They ended up deciding to keep their relationship a secret until they were both ready to reveal.

Voltron Coalition
As Voltron started becoming known around the galaxy, Astraea was noticing how distant Keith was becoming. She had a sneaking suspicion on what it was about but didn't push him. Her suspicions ended up being right when Keith started doing more Blade than Voltron stuff. She did voice her annoyance to the other Paladins when they didn't consider what Keith was going through. He was just thrown into a lead he wasn't ready for. Astraea was extremely ticked off at them about that and refused to speak with any of them for a while.

In secret, Keith did tell Astraea about him doing the Blade work at first, and she fully supported him. She had a feeling doing the Blade was a way to help him figure himself out in a way but also learn more about his mother. They kept it a secret until the time when he announced he's leaving the entire team. That was then the two revealed that Astraea did know about him wanting to leave. Of course, the others were shocked but Astraea wasn't having any bickering and shut them up instantly. She supported Keith all the way. Before he did leave for the Blade, they met in secret one more time sharing a small moment together and Astraea making him try to contact her once in a while.

They would not see each other again until the Coalition's battle for Naxzela and Keith attempted to sacrifice himself. Astraea tried to talk him out of it, but he continued on but said what he thought a final goodbye. It was only thanks to Lotor's intervention that saved Keith's life. Astraea confronted Keith and surprised everyone by not yelling right away but instead of pulling him in for a kiss, thus revealing that the two were in a relationship. Keith revealed to why he did it, with the intent of protecting the ones he cared for and loved. Even though Keith left to join the Blade once more, the two continued their long-distance, promising to see each other again.

When Lotor says he wants to work with Voltron, Astraea is unsure and mostly stays away from Lotor as much as possible. During the time Lotor was with the team, Astraea forms a brother-sister like bond with Lance and would just end up staying near him, the only other member to think Lotor being good wasn't right. She would end up training with Lance, helping him with his newfound sword.

When Keith found his mother, Astraea was the first person he contacted, and to say she was shocked by seeing and meeting his mother, she was also very happy. The short contact was short when the connection went out, making her worry and hope they made it.

Astraea was unable to have a nice reunion when Keith returned, not alone, due to Lotor's treachery, Keith following Shiro's clone, and then finally sacrificing the Castle of Lions to save the universe.

Earth
Following Lotor's defeat and Allura moving Shiro's consciousness to the clone's body, the journey to Earth began. Astraea mainly rode with Pidge in the Green Lion (and thanks to Cosmo she was able to spend some time with Keith). Upon arriving on Earth and joining the Galaxy Garrison, Astraea was a bit shocked by how they did things but, listened since they were on Earth and had to do things their way. Right away, Astraea did not like Admiral Sanda and kept her distance from her, mainly sticking to her Uncle or Keith. Because of her skills and knowledge over Altean anatomy, she was assigned to stay with the Medical Team so she could help should Allura get injured. She would be the only one able to take care of the Altean Princess.

After the final battle and Shiro's speech, Astraea is seen waiting for Keith to wake up with Kolivan and Krolia. She was the first one to give him a hug upon his awakening.

The Future
Following Allura and Honvera's sacrifice, the formation of New Altea, Astraea joins Keith, Axca, Zethrid, and Ezor, with the Blade helping various planets. Years later, she will go to marry Keith and together have three children: Stella, Calypso, and Castor.