Sai A.

Basic Information
Sai A. ( サイ Sai) Is the name of one of the characters in the main friend group, and stands as the pleasantly creepy one of group. She is a citizen of the UNDERGROUND and resides in the FLORAL ASYLUM. She is the TWIN SISTER of Duncan, and is a FEMALE monster with a WHITE soul. She is shown to be BISEXUAL and does end up with Aku Akeku. She is usually able to calm Duncan down when he gets out of hand. She attends Arbor High as a Senior and is 17 years of age.

Appearance
Sai is depicted as being a large raccoon monster, her fur darker than her brother's. She has light brown, curly hair and bright yellow orange eyes. She is usually depicted wearing her school uniform. She sports the traditional markings of any raccoon, and she has dark freckles.

Personality
Aku can be seen as quite creepy, and outright morbid. She actually owns and runs a gore aesthetic blog. She can be seen laughing at the misfortune of many, and will even occasionally scare people for fun. She does not however, have any true desire for the destruction of anything close to her, including for her friends. She does dangerously teeter on the fence, and she runs the risk of joining the other side. She is able to freak out even Duncan, and tends to do it quite often. She likes to take advantage of his fear of spiders.

Abilities
Sai possesses cloaking magic, and uses this to hide in plain sight in battle. Her soul weapon is a dagger, much like that of Duncan's, and she will only really fight if her friends are in trouble.

Attacks:

Coup de Burst: This attack utilizes Sai's magic and causes her to cloak herself as she makes her way behind the target and begins to stab them

Coup de Boo: This attack will frighten the enemy. Sai makes her aura vicious and murderous.

Rabies: Sai will indignantly bite the enemy.

Relationships
Sai is the twin sister of Duncan, and the girlfriend of Aku. She is one of Serana's best friends and is a part of the Green Heart friend group.