This Chosen one actually has something to do with a prophecy. The Greeks have a lot of examples, and sometimes its confusing as fuck.
One example of a confusing prophecy is the story of Oedipus Rex. He was told he would kill his dad and fuck his mom. He runs away from his home( which we the readers know is his adopted home) and kills a processions (with the King of Thebes) saves Thebes and marry the queen and have a few kids. He then finds out that he did in fact kill his dad and fucked his mom ( making his kids his siblings as well. )
Just about every Rick Riordan with the Greeks and Romans are also guilty of this. The dubbed BIG 3 (Zeus, Poseidon, and Hades) get the news that one of their children will either save them or kill them all at the age of 16, so they vow not to have kids, (though they all break this vow) and there are many candidates for this: there was Thalia who's 16th birthday was literally around the corner, but she joined the Hunters of Artemis and stayed 15 forever;there was Bianca (but she died before she even knew who her father was) and Nico, but he avoided that cluster fuck of a prophec;and Percy who did fulfill the prophecy, but didn't kill them. And then the whole 7 halfbloods prophecy came up and one person had to die in order to fulfill it...I wanted it to be Piper (don't judge me) but Leo took that L( but don't worry he's alive due to the Physician's Cure." and that group chosen one falls into the "Multiple Chosen One" category where there is more than one Chosen One.
There is Eowyn and Pippin...or was it Merry, in The Lord of the Ring. There was a prophecy that basically said "No man can kill me" and the dude gets killed by the only woman and hobbit on the battle field.
The main thing about Prophecy Chosen Ones is that literally anything can happen. The predicted chosen one shall have eyes of the stars ( and the protagonist can have silver, almost white eyes) and be of death's blood...which can mean anything. It can mean they're a descendant of Death itself, a mortician, a mother who died in childbirth, etc. Or the Chosen One is destined to fall by "blood's hand" which could mean a relative is going to kill them or they get killed by a monster made of blood....that or a really bad blood transfusion.
There is this story on Wattpad where The Chosen One is of" Two Worlds...What the hell does that even mean? Are they half human half...something not human? Like can we get some sort of clarification on this. This is by far the hardest one to write because prophecies can go in any direction. In the Aeneid, Aeneas ( our "hero") is destined to find Rome, or something, but is cursed to not find it until he eat his table...which he does. But it wasn't a literal table but some sort of flatbread pizza thing.
I'm just saying..I blame the lack of communication for this.