Mina Hakuba was a decent minor character in Castlevania: Aria of Sorrow. Being the girlfriend of Soma Cruz, she’s somewhat important to the story but she spends most of her time outside of the castle.

Pretty much always being at the start point. But in the story, she does take care of Yoko Belnades when she’s stabbed by Graham Jones.

But she does offer words of encouragement to Soma as he’s fighting the evil inside of his soul and resisting the urge to become Dracula again.