Tohka is a girl with very long, dark-purple hair in the same shade as the color of the night. She partially tied back into a ponytail with a ribbon while still letting much of her hair fall to her knees. Her dark purple eyes are described as crystal-like and have a golden tint. Shido remarks that her beauty is to to the extent of almost being violent. Tohka's height is stated to be 155cm, and her three sizes are B84/W58/H83.

Upon her arrival on Earth, Tohka wore an Astral Dress with a black, cream, and pink color scheme and a set of purple-and-cream plated armor which adorned her shoulders and waist. The dress is open at the back and made up into a black corset (which exposes a part of her cleavage) and a two-layered, knee-length skirt which has a pink-to-white gradient. Her hair is tied back using a butterfly-shaped hair accessory. She also wears a pair of gauntlets which have petal-like cuffs, both sharing the same color scheme as her attire, as well as a pair of armored boots. While using Halvanhelev, her ribbon grows longer and sharper, and her underlying dress of light becomes more ragged.

Upon her admission to Raizen High School, Tohka adopts the female uniform of said school. This apparel consists of a black, long-sleeved top (winter version), or a white, short-sleeved top (summer version), together with a blue skirt, and a pair of long, black stockings that reach up to half of her thigh.

In her Inverse Form, Tohka's hair shifts into a dark purple-to-white gradient. Her eyes have also reversed its color scheme, turning magenta. She wears a dark violet dress attached with black laces and a set of grayish magenta-and-dark pink plated armor which adorned her shoulders and waist. The dress is open at the back and the front, which exposed most of her skin and a two-layered, knee-length skirt. She also wears a dark violet butterfly-shaped hair accessory with pointy edges while Inversed. While in casual attire, Tenka is adorned in a dark purple jacket and a violet skirt complimented with stockings. Unlike Tohka, Tenka lets her hair down without tying it with a ribbon.

In Tohka and Tenka's fused form, their hair is completely tied into a ponytail. The right eye is Tohka's while the left eye is Tenka's. Only their right shoulder retains armor, which has a cape attached to it, while a smaller version covers their left elbow. The back of the Astral Dress has wings reminiscent of those attached to the halo behind Mio. Visually, the design looks like a combination of Tohka and Tenka's individual Astral Dresses.

Tohka is a girl with very long, dark-purple hair in the same shade as the color of the night. She partially tied back into a ponytail with a ribbon while still letting much of her hair fall to her knees. Her dark purple eyes are described as crystal-like and have a golden tint. Shido remarks that her beauty is to to the extent of almost being violent. Tohka's height is stated to be 155cm, and her three sizes are B84/W58/H83.

Upon her arrival on Earth, Tohka wore an Astral Dress with a black, cream, and pink color scheme and a set of purple-and-cream plated armor which adorned her shoulders and waist. The dress is open at the back and made up into a black corset (which exposes a part of her cleavage) and a two-layered, knee-length skirt which has a pink-to-white gradient. Her hair is tied back using a butterfly-shaped hair accessory. She also wears a pair of gauntlets which have petal-like cuffs, both sharing the same color scheme as her attire, as well as a pair of armored boots. While using Halvanhelev, her ribbon grows longer and sharper, and her underlying dress of light becomes more ragged.

Upon her admission to Raizen High School, Tohka adopts the female uniform of said school. This apparel consists of a black, long-sleeved top (winter version), or a white, short-sleeved top (summer version), together with a blue skirt, and a pair of long, black stockings that reach up to half of her thigh.

In her Inverse Form, Tohka's hair shifts into a dark purple-to-white gradient. Her eyes have also reversed its color scheme, turning magenta. She wears a dark violet dress attached with black laces and a set of grayish magenta-and-dark pink plated armor which adorned her shoulders and waist. The dress is open at the back and the front, which exposed most of her skin and a two-layered, knee-length skirt. She also wears a dark violet butterfly-shaped hair accessory with pointy edges while Inversed. While in casual attire, Tenka is adorned in a dark purple jacket and a violet skirt complimented with stockings. Unlike Tohka, Tenka lets her hair down without tying it with a ribbon.

In Tohka and Tenka's fused form, their hair is completely tied into a ponytail. The right eye is Tohka's while the left eye is Tenka's. Only their right shoulder retains armor, which has a cape attached to it, while a smaller version covers their left elbow. The back of the Astral Dress has wings reminiscent of those attached to the halo behind Mio. Visually, the design looks like a combination of Tohka and Tenka's individual Astral Dresses.