Hmmm how about the soccer bunch's parents? (That we don't know of)
I talked about Deniz' mom, theorized about Raban’s parents, have a whole au for Wessel's family and slightly touched upon Theumer's family, it's time to talk about Jojo.
Beforehand, hcs are gonna be about Conny and Franz, and I know he's never been confirmed Jojo's dad, in a way it was even dismissed, but it's canon to me mmkay, everything is canon if you're crazy enough. Nor was Conny's addiction ever confirmed, but I'd say it's heavily implied. Also I never read the books, so if you know "the og" lore - I'm sorry for my bullshit.
For some reason both Conny and Franz always alluded to me as some sort of "weird kids". Harmless but rather aloof. Dreamy loners, to put it simply. Franz did have better time socializing tho since he was on a football team, but even there I feel like he might have been a bit of an outsider for being a hippie.
Conny liked photography and Franz was... a bit of a stalker I guess? Not the creepy one, but the one that stalks abandoned buildings and structures, forests, yada yada.
If I'm not mistaken in the series Franz also had a nickname Herzog (duke)?? Now, my theory is that he knew forest so well and spent so much time there that it sort of became his second home, his "domain". And since dukes usually owned huge territories, he, or his friends, started to call Franz Herzog (of Finsterwald).
Later he and Conny started to hang out more: Franz would show her around and Conny would take pictures of everything she saw.
Then Franz' team fell apart but they continued to hang out with Conny. She sort of kept him going. They were "just friends" for a long time, but eventually started dating. Their first date also happened in the forest, maybe at those old ruins.
The relationships, unfortunately, weren't really healthy. They might have seemed healthy on the first glance, but in reality they were really co-defendant and destructive for both parties.
Now a bit more on Conny. Despite both of them being "outsiders", she definitely faced more troubles making friends. Franz was her only friend + some of his friends, like Willi, for example. I like to think that she had anxiety problems (perhaps even an avoidant personality disorder? idk, don't wanna get too much into this rabbit hole), which made it difficult for her to function in the society, Franz just made it easier, but it also made her overly reliant.
Franz is a good man, but being with Conny 24/7 was suffocating. They tried to fix it for a while, but eventually broke up. That's the starting point of Conny's alcoholism. Right now it's just a bottle of beer during weekends after her first break up.
But with their separation she had to face other problems like finding a job, an appartment, socializing with other people, and just adult life in general. She managed, but just barely. Now a few bottles of beer in the evening helped her getting through the week.
Then I think at some point they reconnect and have a short affair, maybe even try to start again. It's Conny's initiative cuz she still loves Franz a lot. Somewhere around that time Jojo happens. They don't really become a thing again, but Franz still visits his son after he's born.
Conny starts working on her alcoholism and she even succeeds after a few years but then Franz dies. She feels so broken by the news she slips back into self-destructive patterns. Jojo was very little at that time so he doesn't really remember Franz, and Conny decided to keep it a secret (that's me trying to justify why Conny reacted so calmly on Franz' photo and told Jojo that he didn't contact her since graduation, I'm that delulu). Her depression gets worse and worse, as well as her alcoholism. She spends YEARS mourning her ex. She has a minimum wage job that she's risking to lose, she has rent debts, and worst of all - Jojo has to be a witness.
She loves Jojo deeply and wishes all the best to him, but she just can't handle the grief. So one night Conny gets so drunk she blacks out, meanwhile Jojo gets locked out during a cold night. It's not the first time that happens, but this time neighbors called the police. Conny gets deprived of parental rights and Jojo now lives in an orphanage.
She spends some time in a rehab, but doesn't show much progress there, still pitying herself and continue being miserable. That is until she gets a call that Jojo ran away from the orphanage. That rings a bell that she she must get her shit together and try to be better, at least for her son.
This story doesn't quite correlate with canon, cuz, as I've mentioned, Franz wasn't confirmed to be Jojo's dad, and Conny reacted too calmly on a photo of a man, whose death allegedly sent her to a hospital.
But you know what?? I don’t care!!! I'm gonna die on a franny hill and come up with stupid excuses, raaaaagh!!!