Character info: Undyne and M.K.
Soul color: Yellow, green, orange, (+red from past RESETs; DT poisoning)
Family: Gerson (adoptive parent)
Sex, Gender, pronouns: Trans Male (he/him)
Hobby: Cooking, watching anime with Alphonso
Favorite color: Oceanic blue
On the surface, he does have a sister. She's his twin, but she's not a monster-human. Due to the instilled fear and hatred to m-hs, she became the one to rat Papina out when she saved her from the bullies.
Has some unresolved abandonment issues
Sex, Gender, Pronouns: AFAB Pangender (They/Kith/Kin)
Favorite band: Sirens' Cove
(NOTE: M.K. won't get any background info, just the general info up top. The background info is only for Undyne)
Undyne knew Torel's orphanage since he was a child. Which wasn't long. When he turned 5 and received his mask, his parents decided they wanted nothing to do with him. So, they took him to the barrier at The Hollow (New Home) and shoved him through with no intention to follow. Asgore quickly found him, and took care of him for a couple days before dropping him off at Torel's orphanage for displaced children. There he stayed for a couple years until he was about 7, when he would be adopted by Gerson.
Gerson was the original creator of the Underground Guard, with her as the head. But at his old age as a human coming to an end - and she will only get older still as a monster - Gerson figured he would need someone to take up the mantle soon enough. Gerson never thought to make Undyne captain. No, she adopted Undyne because she was drawn to his feistiness. It wouldn't be until Undyne started picking fights at school that Gerson would decide to train him for discipline; and only after seeing his bouts of strength and skill from only a little training did Gerson decide to train him to be the next captain.
Training Undyne was no easy feat. While discipline can be taught easily enough, having the disciplinee trust the discipliner is another. It wouldn't be until sometime after Gerson's monstercation ceremony that Undyne would trust Gerson completely.
On the day of the monstercation ceremony, Undyne wanted to escape. Seeing his mentor reach this new stage in his life, trapped down here, Undyne felt despair for the first time in his life. He hated this feeling. Luckily there was a nerd who also attended the ceremony, named Alphonso. Even his name sounded like a nerd's. Al would be much better! And the other kid seemed to agree considering he didn't object to the nickname, plus Al started using it himself!
Once Undyne trusted Gerson, he started taking his training more seriously. He even started to consider becoming, and maybe even leading, the Underground Guard. The only obstacle that stops Undyne from being captain is Asgore. Not saying that Asgore has a say in the matter, but that Undyne heard Gerson say that Asgore is the strongest out of everyone here in the Underground. And if Undyne can't beat Asgore in a fight, he feels like he personally wouldn't be fit to lead the Underground Guard. So, starting from age 9, every year on his birthday, Undyne would march up to Asgore's front doors and demand a battle with her. Asgore at first refused, but after recommendation from Gerson, and Undyne's stubborn refusal to back down on this one thing, Asgore finally caved. But she didn't fight immediately. And that frustrated Undyne immensely. Any time Undyne tried to land a blow, Asgore would dodge. This would become the next stage in Undyne's training.
As Undyne trained, he would often sleep at Asgore's place. He also joined the Underground guard for patrols. And as he trained for his position as captain, he became well acquainted with a secret comrade, Sanse, the judge that determines if someone should be allowed to visit Asgore or if they wish harm upon her. While on patrols, Undyne caught glimpses of Papina while on patrols in Phantom Falls. He saw how strong she was, how capable she is. One day, he offhandedly remarked how Papina would make an excellent guardsman, to himself of course but it just so happens that Sanse was around to hear that remark. Sanse offhandedly remarks that if anything were to happen to their sister, they would personally hunt down the one responsible for putting Papina in the situation to begin with, to themself of course; it just so happens that Undyne, and Undyne alone, was within earshot to hear it.
Undyne wouldn't be able to land a single hit on Asgore until around the age of 14. That is when Asgore incrementally increase the difficulty until she also fights at full strength. They also spar on the regular. It is at that point where Undyne managed to successfully beat her time after time after time at the age of 21. Undyne felt like he was finally ready to take on the mantle of captain of the Underground Guard.
A year later, when Undyne's 22, a hoard of empty souled PoS members purposefully fell into the Underground with the goal of wiping out the survivors. Luckily, they received word from Napsta about their arrival. And while the volunteers usually train for this kind of scenario, having a swift confirmation helps tremendously in placement. So much so that they were able to fend off the PoS at the gates of the Haunted Ruins. No innocence were harmed, only guardsmen. During that battle, one PoS member fought very recklessly. They managed to severely wound several guardsmen on their own, and when Undyne rushed to deal with them himself, they landed a lucky swing at his face, scaring and blinding his left eye. After the battle was over, Undyne personally helped carry those that had 'Fallen Down' to Alphys.
A couple nights later, after a celebratory party for the successful defense, Undyne was greeted at his door by none other than Papina. She started rambling Undyne's ear off about what the guard had accomplished, how cool they were, and that she wants to join! Undyne already knew what would happen if he let Papina join, and he was too tired. He refused Papina and shut the door in her face and headed off to bed. But to his surprise, he opened his door to go out for patrols and was greeted by an enthusiastic Papina, who had not slept a wink that night; yet she acts as if she had ample sleep the night before. That was enough to convince Undyne to take the risk and train Papina. However, Undyne would soon realize why Sanse made that threat: Paps was too nice. For as strong as she is, she doesn't seem willing to take the killing blow; she wouldn't even go for a mercy kill. For crying out loud, she managed to defeat Undyne easily on the first try! But whenever the topic of killing came up, Paps would try to find some work around. Undyne couldn't bring himself to accept her into the guard. So he kept making excuses as to why she shouldn't join, and divert her attention elsewhere, like cooking! It's a good thing Undyne's a terrible cook, because the longer he can take on teaching Papina something that isn't guardsman training, the more he doesn't have to come up with less and less convincing lies and excuses. Unfortunately, it got to the point where he had to accept her somewhere, so he set her up close to Sanse's base of operations: sentry duty.
It's a good thing Undyne trained Paps as well as he did, but it did very little when it came to defending the Underground from Frisk.
Next up is Mettaton, Madelyn-Dummar, and Napsta Blook
