Algol

Background
A former Demon Lord, she was sealed sometime before the start of the series by the Perseus community.

Personality
Nothing could be told of her personality for she did not speak nor did she do anything that showed her own personal thoughts besides following her master's orders obediently. Perhaps it is the rule of Little Garden that makes her obedient but it could also be her scheme. Hence, nothing can be concluded for now.

Relationship
Lauis Perseus - The contracted master whom she has to obey. As Algol's powers are in relation to her master, she is currently very much restricted in her powers to the point of the restrictions materialising in the form of her chains.

Sakamaki Izayoi - Algol fought with Izayoi under her master's command but was easily defeated with her Gift usage shattered in mid-beam.