Nemesis is the Type: Maiden with Calculator Arms Embryo of Ray Starling.In her Maiden form, Nemesis is a short-statured girl dressed in gothic clothing. After evolving into her fourth form, Nemesis's clothing has become somewhat more extravagant than before.Nemesis is a kind-hearted girl who is determined to support Ray no matter what, though she is not afraid to lecture Ray about his shenanigans such as his obsession with gacha. She is quite proud of her abilities, often arguing with those who look down on her, and attempts to comport herself like an elegant lady. Though that image is completely shattered by her gluttonous personality.As a Type: Maiden Embryo, Nemesis is capable of independent operation, but due to her nature as Type: Arms, she can only use a limited number of skills on her own.

Nemesis can sense the location of individuals that have done damage to her and Ray to a certain degree. Additionally, she can also transform her arms into a sword and even adjust her Forms somewhat to be easily held by Ray even when injured.

At her 1st Form, she gives Ray a status correction of D on HP, G on MP, DEX, AGI, and LUC, F on SP and STR, and E on END.

Becoming a Type: Calculator with her 5th Form, Nemesis obtains the category for a Type: Arms Embryo whose functionality focuses on calculation ability.