Shirafuji Sana

Sana is Yukine's bride thorn.

The two first became acquainted in a meeting arranged by the Army, where she was ordered to attend to the Vampdoll. Initially, she had no idea how to handle the stubborn Yukine, but over time the two grew closer.

Sana's a bit of a tomboy. Despite that, she is shy and tends to stutter, only feeling herself around those she's close to. She's the type who's surprisingly steady in a pinch, but just as flaky in fair weather.

She's best friends with Ao and the only one who can keep Yukine in check.