Heliose

Despite having two heads and two brains, this creature acts as a whole- one name will suffice for the both of them, they control their body together and can share thoughts with each other telepathically.
Both heads seem to act almost like clones of each other- they can finish each others sentence's, have the same voice and both have the same personality. However, they often refer to each other as 'brother'.

Heliose never seems to age, get ill or ever get injured, his body is always in the same, pristine condition. Because of this people have started to question if this is actually a living being. Heliose would not tell you, but he is actually a very skilled in magicks, and uses them to keep himself in check. He excels in restoration and illusion- powers that come from the bright green gems on his foreheads and sides. These magicks are also what makes him able to fly on such weak looking wings.
He is much older than you may think, thanks to his magical skills, and has quite a vast amount of knowledge stored in those two heads.

He never forgets anything he's told or learnt, which sometimes makes him very handy to have around, and sometimes makes him very annoying to be around.
He loves using his excellent memory to pester people- and if he doesn't like you, you can expect him to bring up some horrible memories or lies in your past. But if he does like you, he'll just remind you of things you have forgotten.
He may seem quite nasty at times, but he's not that bad once you get used to him. If he does come to like you, he'll remain loyal unless you give him a reason not to.