Wolfram in-depth information
This honestly sounds like a cracked-up summary of the anime, except Wolfram is at the focus. XD Spoiler warning! Please do not read if you haven't watched the other episodes yet. If you don't mind being spoiled, though, then go ahead. XD
Wolfram first appears near the end of episode one. He has wavy, blond hair and big, emerald-green eyes. His first lines are, "Is that the Maou?", referring to Yuuri. Yuuri looks at Wolfram and goes "Bishounen!", which means "pretty boy". And yes, it can't be denied that Wolf-chan is a pretty boy. I mean, just look at him. XD
When Yuuri attends dinner with Wolfram and his family, Cecile formally introduces herself, and obviously Wolfram took his looks after her. During dinner, it is revealed that Wolfram is a rather short-tempered brat who's judgemental and close-minded. He openly expresses his dislike for Conrad because Conrad came from a human father, and is highly doubtful that Yuuri is the real Maou. He strongly refuses to accept that Yuuri is the Maou, and is very open about his protests. He continues on saying that Yuuri is just probably the offspring of an "immoral nobody". Yuuri is pissed (well who wouldn't be?) because of this, and in his rage he slaps Wolfram.
Conrad and the others plead Yuuri to take it back, but Yuuri doesn't. Günter then reveals that according to an ancient tradition among nobles, Yuuri has just proposed to Wolfram (lolz). So ya, Wolfram is obviously pissed and stuff, saying that he's never been so humiliated in his life, and knocks the silverware off the table. Yuuri picks up the knife despite warning, and apparently according to the tradition, he's just accepted to duel with Wolfram (at which Yuuri exclaims what a silly tradition that was).
*Insert Yuuri and Conrad moments here* Okay! At the duel, Yuuri decides that they're doing a sumo match and tells Wolfram to take his shirt off, much to Wolfram's horror (Wolfram's expression is priceless XD). So they argue a bit and Yuuri agrees that Wolfram keep his shirt on (but aww... *pout*) and defeats Wolfram because Wolfram doesn't know crap about sumo matches. Wolfy again gets pissed like woah, and unsheaths his sword and attacks Yuuri. Yuuri, though, since he's had baseball training, totally pwns Wolfram, which only gets Wolf-chan even more pissed. Wolfram then uses his uber-cool!fire magic, and Yuuri is like "Whoah" and everyone else is like "Nuuuuu". Unlike Wolfram's rather crappy show with the sword, he's actually pretty skilled at fire magic. Yuuri manages to evade Wolfram's first attack of flame magic. Wolfram then conjures a fire lion, but when Yuuri evades it, it hits one of the castle's maids instead.
Yuuri is enraged that something like that happened, and turns into smexy!demon Yuuri. Wolfram seemes pretty speechless, and demon!Yuuri says his speech about justice and stuff, and conjures water serpents that wrap themselves around Wolfram and lift him off the ground. Wolfram protests, and demon!Yuuri releases the water serpents's hold on Wolfram and faints. Wolfram is shocked that Yuuri is able to do something like that.
The next day, Wolfram appears in Yuuri's bedroom, and when their eyes meet Wolfram snubs him. XD This shows how stubborn Wolfram can be, even if it's obvious that Yuuri has earned his respect. :)
In the next episode, for some reason Wolfram brings Yuuri along to where Gwendal and Conrad went. Wolfram has four personal bodyguards (spoiled much? XD) who are also skilled magic users and are actually pretty hot, especially the guy who looks like a chibi!Yozak (more on Yozak later). When they reach the burning village Adelbert appears, and he (or his men) casts a spell on Wolfram and Wolfram's hot bodyguards so they can't move. Then Yuuri and Adelbert have a talk about humans burning the human village, and Adelbert goes like "I hate Mazoku's gaaaargh", and says Wolfram hated humans too, emphasizing more on Wolfram's dislike for people not of his race. Then Wolfy tells Yuuri to go with Adelbert, because for some reason Wolfram thinks Adelbert won't hurt Yuuri even if Adelbert's got like a big sword and a mean expression on and stuff. O_o
To save Wolfram, Yuuri lets Wolfram's horse run, dispelling the, erm, spell. XD Then Wolfram's pretty much absent while Yuuri almost gets himself killed and Conrad has to save him and yeah. Wolfram is next seen in with Yuuri at a distance from the village. Yuuri wanders off and gets hurt emotionally and stuff, and when he returns he mentions that he thought Mazoku's are supposed to be the ones to do something such as burning a human village. Wolfram states they won't do anything like that because it would ruin the Mazoku's land, showing that Wolfram can make sense when he wants to. XD Gwendal emerges and Wolfram goes on to say that Yuuri is basically a useless dork who can't do crap to save his life, but apparently the spite he held for Yuuri previously has disappeared, and he was just saying that so Yuuri would notice him (or it could just be because he's naturally an annoying brat and he can't help himself). And then he asks Gwendal if the burning of the village is a declaration of war, and Gwendal tells him to think more. XD
That annoying extra dude then proceeds to attack Yuuri and cute Wolf-chan goes ":O". Then a kid saves Yuuri from the ugly dude, and Yuuri grows all emotional and is able to summon rain. And Wolfram goes pretty much like ":O" for the rest of the episode. Not much to say about him there. XD