Esuka Hibino

Esuka Hibino is the major antagonist of Cardfight!! Vanguard: Shinemon Arc. She is determined to stop Shinemon's rebellion to protect Card Capital, as she bought the shop for her own corporation after the death of Misaki Tokura's parents. She seems to harbor no ill will, however, since her chain of card shops are well known for being beginner-friendly, with a cozy environment for all kinds of cardfighters. She even looks out for Shinemon, indicating that his studies may suffer because of his actions.

(Source: Cardfight!! Vanguard Wiki)