Age: A year or so younger than Spirit, so 29-30, something like that.
Height: Tall as hell, probably 6'1'' or something like that.
Usual appearance? Here, have some manga pages!
onetwothree Threadhopping with this character - yes, no, or what?: Honestly, I love threadhopping, so I'm going to say yes. But yeaaah check and see if the other player has an issue with it first.
Hugging this character?: He'll look at you like you're a crazy person and probably won't hug back, but he won't freak out or anything usually.
Giving this character a kiss?: Pretty much the same as above.
Punching this character (provided they are given an opportunity to fight back): You more than likely won't land a hit, considering Stein's God Tier in the Soul Eater-verse, but if you're The Flash or get someone to distract him or something, you might get lucky.
Is there anything YOU DO NOT WANT MENTIONED near this character?: Nah, he's a pretty laid back sorta guy and not a whole lot riles him up that much. Though expect him to get a bit antsy if your character mentions they're a witch or something.
Is there anything you need us to KNOW about interacting with this character? Special physical features, fighting abilities, STUFF: LMAO WHERE THE FUCK DO I EVEN START ON HIS ABILITIES? HE'S GOT LIKE 9000
On his own:
1. He can see souls and figure out someone's characteristics/personality from what he sees.
2. His signature move is his Soul Purge because FUNimation and Yen+ can suck my dick ability. He strikes at someone with the palm of his hand and... Basically electrocutes them. In the Soul Eater-verse, the explanation is that he concentrates his own soul wavelength through his hand and attacks the other person with it. To normal people, it pretty much knocks them out cold and blood comes pouring out of every orifice it can, depending on how badly it hit. With people who have some sort of special ability themselves (i.e. a witch or something) it doesn't knock them out, just injures them and slows them down, pretty much. When he uses both hands, it's strong enough to take out stronger opponents, but it has the downside of needing both his hands free so he can't be using a weapon at the same time. But don't worry, he works around that by being able to using this ability three times in rapid succession to have all the devastating force of his Twin Lance ability, but without needing to drop Marie/Spirit on the ground like an idiot.
With Spirit:
1. He has an ability to make up a... Giant Michelin Man, basically. It's a defensive move that keeps things from stabbing him while he's preparing an attack. It takes a lot of time to use so he's actually put the damn thing into practice all of once. It probably doesn't work against close-range attacks and he needs to properly resonate with Spirit to do it.
2. My personal favorite, his Soul Stitches. He can use his soul wavelength to make stitches that immobilize either him or his opponent. He's stitched himself to the floor, Medusa to a wall, and he can also stitch someone to themself making them completely unable to move. However, the downside is that he needs someone to resonate with on the last one. Neither he nor Spirit can move when he's stitched to someone internally and it's got a bit of a time limit because they have to be completely concentrating on the task at hand. He technically doesn't need a Weapon at hand to do the other two, however, because he has to be concentrating, he can't keep them attached for very long and can't really attack too well without one.
3. Witch Hunter is an ability that relies mostly on Spirit, honestly. Basically, they resonate, and then HOLY SHIT THAT SCYTHE IS ACTUALLY GOD FOR SOMETHING! RUN! It can be used to block attacks and obviously it can be used offensively as well, though Stein usually opts out and goes with his typical "Block with Spirit, use palm of hand, swing wildly like I've never done this before" formula, so it's mostly defensive in his case.
With Marie:
1. Because of Marie's lightning abilities, she pretty much acts as an amplifier, and tl;dr lets Stein move around obnoxiously fast. I'm talking "Sonic the Hedgehog, when did you get behind me?" fast.
So basically, don't try fighting him. You will regret it immensely. ...Unless of course, you've managed to grab onto his bolt and twist it the wrong way before he's jacked you up - it makes him lose his concentration.
ANYTHING ELSE PLEASE MENTION HERE: CONGRATULATIONS IF YOU'VE MANAGED TO READ THIS FAR! \o/