Headcanon #2: Odd's Family
So not a whole lot is said about Odd's family, and we only get to meet his parents once while his sisters are only mentioned.  However, we do know that he has five sisters, and can infer that he has no brothers.  They are listed by name once in the series, while the French Wikipedia lists their names as Pauline, Elisabeth, Marie, Adèle, and Louise.  It does mention at one point that Odd can't differentiate between Adèle and Pauline, so it can be assumed they are twins.  His parents are not given names.
Now, it's anyone's guess where they fall as far as ages.  We only know that Odd is the youngest and that Adèle and Pauline are most likely twins.  This leaves a lot of room for headcanons, I think, lol.
I choose to ignore the painfully stereotypical French names here for my Italian headcanon. Â I knew the names before I decided on Odd's origins, and they change nothing to me.
Now, it can also be somewhat assumed that, due to how young Odd's parents appear to be (they lack any discernible age, unlike Sissy's father and Yumi's parents), that most of the girls were born close to each other. Â Probably within ten years or a little more. Â It is my personal opinion, given the way Odd relates his past, that there may be a bit more of a gap between his age and his sisters', though it could also be attributed to his different gender.
There is no way of knowing what their personalities are, though I imagine with the sheer number of them, they have to be somewhat diverse. Â I personally like to think at least one of them is involved in a band of some kind, as it seems like something Odd's family would do.Â
But given the personalities of Odd's parents, and the way Odd says he was treated as a young child, I imagine his sisters would have been a lot like Odd in the past and even now, with their parents smiling on.
If anyone else has some headcanons involving Odd's family, please, throw 'em out here! Â I love hearing about them, lol.