It doesn't exactly start when Yvonne meets him. They were more like... Rivals.

It was nothing like her relationship with his brother and Richter noticed that. Unlike him, Yvonne didn't try to eradicate him like she tried with Karl. It was more like "you're annoying but you're better than the other one" kind of relationship.

They were teenagers when they met, around being, physically, twelve(ish) years old. They weren't shy about their own strengths, and playful fights were normal between them. Honestly, Richter was trying to be a gentleman around everyone, Yvonne included, but her schemes were enough to get to him.

Both of them, like anyone else, grew up. The three wives came, and obviously with that package, so did Cordelia. By then, Yvonne developed a tiny crush on the dark green-haired young man, but seeing him so head over heels for her, well, she didn't have the heart to make things more complicated than they already were. Besides, she didn't justify cheating... Although she was surprised when Karl told her he knew, he was just giving her "something to play with"...

"Something to play with". He described Richter as a toy for that woman. For that fucking monster.

But she couldn't do anything about it. Besides, she had to go soon enough, so it's not like he would miss he—

W R O N G.

Before her carriage to Paris departed, he asked to please keep sending letters to his place, to keep in contact for him to at least know her stupidity— No, her insolent nature didn't kill her yet.

She laughs.

“Oh, what's this? Did the big, grumpy man got sad that I'm leaving~?”

“Tsk. Don't push your luck, you mad woman. It's already enough that you dare to insult your king.”

“Your brother can go suck a dick for all I care, cabbage head. See ya!”

Their letters didn't exactly have anything about important information, nothing spicy, really. KarlHeinz read one of Yvonne's letter while snooping, only to find a rant about the different pieces of clothing and their prices in France. Needless to say Karl subtly teased his brother about the letters.

It was around the time when Cordelia found one of those letter that everything went down hill. While there really wasn't anything suspicious, her jealousy got the best of her just like always. The first part of the last letter Yvonne received goes like this:

“To Miss Yvonne:

While our time writing to each other was at the very least entertaining, I am afraid that I find myself pretty annoyed and tired with your useless nagging and bragging about things that are not important. Couldn't you be at least more fun, something more than what you are now?”

At this point, Yvonne knew that while this was Richter's writing, it wasn't really him on the letter. She knew who it was. But the more she would press the issue, she was sure it could be worse for him. After all, he was madly in love with that woman, no matter how many times she asked him to just please, please reconsider all this romance, all this affair, only to fall on deaf ears.

She didn't reply, she knew what would happen if she did. Yvonne hoped for a few years, around one hundred years, for him to write a letter just to tell her about his day, but nothing ever came. Eventually, the pain of losing him so slowly, so torturously and painfully slow, turned into a memory, and so did her love for him.

(Or so she thought, of course).

Years pass, and the both of them have their own lives. Honestly, Richter didn't expect to hear from her again. With Cordelia's most recent fit and the Founder's extinction, he was left there in emptiness, the only thing keeping him actually active was full filling his duties and passing the time by reading and waiting at Cordelia's feet to forgive him.

Until a letter is sent to him under the name of “Dame de la Lune”, in a night blue envelope. And what does he find inside? Her, that wrench, that forgotten and unimportant Foundress... asking for help, his help. That letter, it doesn't even sound like her, so desperate to see him, so afraid...

He almost declines. When he wanted to notice, he was already writing a letter to her saying no, that he has more important things to do, but he suddenly stopped writing.

What was he doing?

He didn't sleep for months since Cordelia's incident. He didn't see his brother nor anyone else but her and the servants in years. He was... He was alone, and scared. Scared of... anything. Really.

He leaned over his back, rubbing his whole face in pure exhaustion. No, she sounded scared, too, in that letter.

She needed help. And he was her only option.

Well, off he goes. To... Germany?

The fuck is she doing in Germany?

Well, it did not matter. He was sure that nothing out of the ordinary has happ—

She had a husband and two children. OK.

He would be lying if he said he wasn't upset about this at first. He was upset that this woman made her life in a cottage and that she... Changed a lot.

Her short and rebellious hair was now long and wavy, and her way of dressing up was modest and yet, so elegant. The cotagge that was her home... Everything about her was so different...

But he didn't complain. It's not like he had any in the first place.

He meets August first, and then, their children. This man was... So gentle. He obviously didn't look like it when he saw him giving his stature and his overwhelming scent and power, but in that evening, a lot was shared.

“I'll be honest with you, Richter... We're at war against humans.”

Oh, that doesn't sound that bad.

“And your brother.”

Ok, it's that bad.

The more she talked, the more his concern grew. This woman really thought that defying his brother like that for the mere sake of the little family she formed was worth it?! Richter gets up, furious at her actions. He screamed how she and her husband were basically begging him to defy his brother. In that moment, August got on his knees and beg.

...