Yuki

Not to much is known about Yuki, her age is unknown, her abilites are unknown, she refuses to talk about anything that involves her... but she is reported to carry a VERY large sword sometimes, folks suggest she has pure strength

Facts of Yuki
She's helpful and loyal to DreadFate, DreadFate thinks highly of Yuki as Yuki was the one who helped DreadFate on his rise to power.

She is also a supernova, like her captain DreadFate.