Chisato Oosawa is a student of Naraka High School and a member of Class 4. She has the same character as Aira Hirasaka, and it is located on her right thigh.
She has dark eyes and curly black hair, which she keeps into two pigtails. She wears the standard Naraka High School uniform.
Powers and Stats
Name: Chisato Oosawa
Age: 15 years
Classification: Human, Student from Naraka High School
Attack Potency: Human level
Speed: Normal Human
Lifting Strength: Regular Human
Striking Strength: Human Class
Durability: Human level
Range: Standard melee range
Standard Equipment: Katana
Weaknesses: Those of a normal human
Although her character is "katana", she reveals in her fight against Aira that she has no real experience with wielding it, having only trained with it for a month before her arrival at school. However, she claims to make up for what she lacks in experience with her imagination, and is able to alter the form of her katanas.
Chisato also makes plush toys by hand, as shown when she gifts Aira with one as a thank you.