A familiar created by the Grand Sorcerer, Aster is a vampire who drinks blood to replenish his essence. Shrewd in business, he's amassed considerable wealth and assets. With his riches, he's made his mansion in the Royal City a peaceful haven for his Master and the clan members, and is keen to offer all kinds of assistance...

Due to the strange weather in the Dark Territory, he travels there with Eiden to investigate, but the lightning seems to be making him uneasy...?