the daughter of wealthy parents and a regular customer at VA-11 Hall-A.

She is also a Cat Boomer and a long time friend of Sei Asagiri.

She often acts in a prideful manner, shown when initially meeting her, and when Sei isn't around. However, she's a kind person at heart, as shown during Mega-Christmas when she buys a large number of gifts for the children in her family.

She also hides her true feelings under her usual haughty demeanor, as evidenced when Sei was heavily injured at the Apollo Bank incident. It is also evidenced in a more lighthearted manner when she often tries to hide her status as a fan of *Kira* Miki's music, as shown from her reaction upon seeing *Kira* Miki's signed glass.

Stella is self-conscious of her breast size, thinking them too big. To compensate for this, she somehow tucks them in to reduce their apparent size, in addition to adding the "drills" to her hair to distract from her chest. Even though she goes to such measures to hide her chest size, she doesn't want to go through a breast reduction procedure, as she feels it would be betraying to her mother, who is prideful of her chest and shows it off as a sign of confidence.