The Hike Before Everything changed

My Wife is a Vampire Princess Season-1, Basically revovles around the Story of Princess Selene the Daughter of King Laxmus, now please understand that the King Laxmus i am talking here about is Basically the King Laxmus all of you knew & read about in the famous Web-novel (My Vampire System) King Laxmus's first born Daughter Princess Selene was ultimately the reason why many Vampires had to flee from Earth, & much later also became the reason for the demise of King Laxmus & her younger brothers & sisters. what choice did someone like Princess Selene even make that forced many other Vampires to flee from Earth itself is something very very interesting to know about.