(Magic Cards + Fusion + Dark + Factions)
I'm a novice writer, so if you spot anything wrong, feel free to point it out. I'll definitely reply when I see your comments.
In the Starvault Magic Card Domain, there is no traditional magic or martial arts. Magic cards are the sole vessels of power: hunting, defense, and even the everyday supply of source energy all depend on the interaction between magic cards and star-core source energy. Ordinary people are born able to absorb only tiny amounts of source energy passively. Only those who awaken a "Magic Card Engraving," a faint glowing pattern that appears on the palm, can become "Magic Card Masters." They use magic cards to channel source energy and control magical creatures in battle.
The world's vault islands are divided into tiers according to source energy concentration and danger level. At the bottom are the "Mortal Realm Vault Islands," where source energy is sparse and magical creatures range from zero to three stars; this is where the protagonist spends the early part of the story. The middle tier consists of the "Spirit Realm Vault Islands," where source energy is moderate and magical creatures range from four to six stars. Above them are the nascent "King Realm Vault Islands," where source energy is abundant and magical creatures range from seven to nine stars. The vault islands higher still are hidden behind dense clouds of source energy, and only the top factions know of their existence through legend. There lie the secrets to advancement for Magic Card Masters of King rank and above, as well as traces of legendary magical creatures.
She also likes to pretend, and at the same time she says she wants to hide herself, thinking everyone else is who they are.