Celistia Ralgris

Celistia Ralgris (セリスティア・ラルグリス Serisutia Rarugurisu) is a third year student of the Royal Officer Academy and the leader of the Knight Squadron. She is said to be the strongest of the Academy. She is part of the Ralgris House, with her father being one of the Four Great Nobles. She became Lux Arcadia's aide after he became a member of the Seven Dragon Paladins.

Personality
As one of the prestigious knights, Celistia is publicly seen as a proud and strong female student who's willing to protect anyone from harm, specifically anything related with men. She takes it onto herself to be the leader of Drag-Knights and she is alone because of her personality.

In fact, Celistia is a socially awkward person who wants to have friends. She is easily misunderstood, leading to her being seen as a man-hater when she just doesn't know how to interact or getting along with men (among other misconceptions).[1]

Thanks to meeting Lux, she has started opening up about herself more and becoming closer to some of the other members of the Knight Squadron. She fall in love with him by kissing his cheek and has no problem of letting other to love Lux too as her love rivals.

Celis has a drunk problem when she mistakenly drank alcohol as a result of her being underage.