Possible Storyline: It's about a world a bit like Summer Wars except the virtual world is the only world. Most of the characters live in the main city, which is run by a type of megastore/company that keeps everything in check. Some characters are against the megacorp, others are for it, and some don't care.
Character headcanons (only a few not all of them):
0004 has a skateboarding gang that includes 0006, 0011, 0014, and sometimes 0032 skates with them. Not everyone uses a skateboard, as 0014 has one of those y-shaped scooters and 0011 has a normal scooter.
0012 wants to join the skateboard gang but they think he's a dork. He rides a unicycle and is constantly trying to impress 0004 with his skills. He's actually quite good at riding a unicycle, he just comes off as a bit too excited and dorky. (he's totally got a crush on 0004, or at least a guy crush).
0014 is a really good graffiti artist. He and 0032 often collaborate on projects.
0032 is a well known graffiti artist in the megastore storyline. He isn't officially part of 0004's gang but they really want him to be in it.
0034 is mute and very shy. If we're talking about the megastore sotryline then he was arrested for musical propaganda against the megacorp and put away. Outside of that headcanon sotryline he just keeps to himself a lot. Good friends with 0050 in either storyline.
In the megastore storyline 0050 was also arrested for vocal propaganda and is trying to break him and 0034 out of the place. Outside of that story he just thinks 0034 needs to get out more.
0036 is a mass-produced traffic android that is placed around the city in the megastore storyline.
0041 builds skateboards and other "illegally" modified vehicles and sells them. Does the same thing outside of megastore storyline but its just not illegal.
0011 tries to be really stoic and cool. She's the kind of kid who pretends lollipop sticks are cigarettes.
0010 is a rap artist and hangs around 0004 and the gang a lot, but doesn't skate. Rollerblades sometimes.
thats enough for right now i think. feel free to use these ideas if you like them.