megablackcandlelight replied to your post:
          I… I just read somewhere that “nothing was...        Â
  Of u got a chance what background would give the characters of the show  Â
Well, Hunter we talked about the other day. As I said, I like that he came from our world as it was in 2006. That he has two parents (no siblings) and was not on good terms with them because they never believed in the Inner World and probably tried to discourage him from looking for it. But other than that, he's basically normal.
Corona we know mostly from the show. She was Aqune's sister (the younger of the two- and they're not twins) and she trained in Nuuma to be a handmaiden. She ended up falling out of a ship that was attacked at was found by Sina and Mina.
My own piece of headcanon is that she didn't have Venus when she was in Nuuma, just a manacle. She probably found Venus later on. Because if she did, Venus probably would have just told her about her past. Her memory wouldn't have been lost.
Igneous I imagine came from a family of knights who served the royal family for generations. He might have siblings. He probably grew up in the castle. I'm assuming his parents died when he was young in battle. I don't know if either of them were Spider Riders, or just knights. Maybe one of them was a Rider, and that's how he inherited his manacle.
I see Igneous and Lumen as long-time childhood friends, because they both grew up in the castle, even though Igneous is a few years older. I think he's about 16. Lumen is canonically 12.
Lumen and Sparkle, I like what I had in this one fic I wrote (https://www.fanfiction.net/s/12347070/1/Kingship)
In summary, they're descendants of King Arachna III. Their parents were both Riders. They died and so Lumen and Sparkle inherited the manacles. I think that Ebony belonged to Lumen's father originally. Hotarla could have been a royal present for Sparkle, or was possibly the child of Ebony and their mother’s spider.
Also, Sparkle doesn't really remember her parents at all, because she was too young when they died. She’s kind of sad about this, and often asks Lumen to tell her about them.
Magma we know about for the most part. He grew up as a Brade fanboy. His family died in a fire because of an Insector attack. He met Brutus, because Brutus saved him from that fire. And then he spent his time as a wanderer, searching for Portia, until he wound up in the Forest of Bewilderment.
I don't have any real headcanon for him, because the canon is actually pretty good at explaining his past. (Which doesn't mean I wouldn't love to see more details about his childhood and family.) I think he’s 17, making him the oldest Rider (excluding Brade.)
Brade has been a Rider for many years, and is actually hundreds of years old. He preserved himself as a ghost, as we know from canon. But he's probably fought with every generation of Spider Riders since the first one.
For Aqune, well we know in canon that she trained to be a handmaiden and was related to Corona. I headcanon her as two years older, which would make her 15. Like what I said with Corona, I don't think she had Portia most of her life before she was with the Insectors. But what I do think is that she might have been given Portia shortly before leaving Nuuma, because she states that she always had Portia when she was with the Insectors. If it was on the last possible day, that would clear the issue of Portia not knowing anything about Aqune's childhood, any more than Aqune does.
I also include some details from the Teletoon Corp version in my headcanon, because I find them so intriguing. That is, Aqune met Buguese once before being with the Insectors, and healed his injuries, saving his life. It adds an interesting dynamic to their relationship. Then when they met in the forest, Buguese actually knew who she was, and knew she was a handmaiden.
For Buguese, I wrote an entire fic involving his backstory recently. (https://www.fanfiction.net/s/12527902/1/The-Oracle-s-Records)
Like with Aqune, I incorporate what was said about him in Teletoon Corp and some early information on the Japanese site. I think it's basically more canon than head-canon, since one of the Japanese official sites said this about him (it doesn’t exist anymore).
That is, Buguese is an artificial Insector (mixed with some human DNA) created by Mantid explicitly to serve Mantid, like the super-soldiers from ep. 41. So I think that means he never had parents or an actual childhood, having been born with an adult body. From that, I headcanon that he's actually a lot younger than he looks. That maybe he wasn't created until recent years. Regardless of when he was created, I say he definitely wasn't born when the Insectors still had sunlight, which would make him hundreds of years old. That's because he acted like he'd never seen the sun before when it actually was restored.
Also, what I included in my fic was that he was based off of an Insector who fell in love with Spirit Oracle and once betrayed Mantid. (They’re not the same person, nor do they have the same memories. The body was just a basis.) So it was basically revenge on Mantid’s part.
The rest of the Big Four I think were natural Insectors. Certainly Grasshop was. I imagine they didn't really know each other until Mantid founded the Big Four. I also think that there have been multiple incarnations of the Big Four throughout history.
To be honest, I haven't thought too much about their pasts. Except Stags, who I figure spent most of his life training and disciplining himself, and rarely ever interacted with other people.Â
Mantid I think was a soldier of the Oracle but not a Spider Rider. King Arachna III was the first Spider Rider, and when he became a Rider, I think the war between humans and Insectors was a big deal. Because Mantid escalated the war. I assume there was always conflict between the two races, which was why the oracle needed champions all throughout time. But there weren’t always Spider Riders. Mantid, as we know from canon, turned on the Oracle after Lorraine died, and hated the Oracle for “distorting his humanity“, as he put it in the Japanese version. He made himself into an Insector by messing with Insector DNA, because they have a longer lifespan than humans. And because it was easier to get their trust that way.