Origami Tobiichi

Another main heroine of this work and the protagonist of the spin-off "Date A Strike". A classmate of Shido. A beautiful girl with short white hair, expressionless, and indifferent to anything not related to Shido, like a doll. She is a genius girl who is intellectually brilliant and also excels in sports. However, she rarely shows emotions in public, often ignores people when spoken to, and spends her breaks reading alone. She usually calls others by their full names, but calls Shido by his first name after inviting him to her home. She has an unsociable personality, the exact opposite of the cheerful and friendly Tooka, and is always arguing with her over Shido.

Her other side is a member of the Japan Ground Self-Defense Force's Anti-Spirit Team, AST, with the rank of Sergeant. Despite her young age, she has high combat abilities and is called a "one in a million genius" by Westcott.

Five years ago, on August 3, she lost her parents to a fire caused by the spirit , which led her to hate all spirits and continue fighting for revenge against the spirit that killed her parents. However, she often takes reckless actions for her goals, and is frequently cautioned by her captain, Ryouko.

She has a subtle affection for Shido alone, showing exceptional initiative in matters related to him. She knows everything about Shido, from his height and weight to detailed health conditions, and even claims to be his "girlfriend" to his younger sister Mana, asking to be called "sister-in-law". Her knowledge about romance is extremely biased, and when Shido first visited her room, she greeted him in a maid outfit, served him a large amount of aphrodisiacs disguised as tea, and suddenly went to take a shower, appearing in front of Shido with just a bath towel.

She became a spirit due to , and after learning the truth about the events five years ago, she went berserk but was returned to normal by the efforts of Shido and others, resulting in her having both her original and altered personalities due to the changed history.

Later, she was provided with the CR-Unit by .

Her identifier as a spirit is . Her spirit gear is a dress and skirt (white), with a floating ring around her head and a veil flowing from it, resembling a wedding dress, called . The manifested angel has several elongated feather-like parts forming a crown-shaped wing . The combination changes the method of attack: scattering thousands of destructive particles in a circular formation , transforming into a wing shape for high-speed movement , and dispersing into numerous remote-controlled attack terminals that emit light rays piercing through the spirit gear , and when combined into a crown shape, it fires a cannon with power comparable to Tooka's .

In her reversed state, her identifier is . She wears a mourning dress-like black angelic spirit gear, and the manifested devil spreads countless blackened "feathers", emitting dark rays of light . She became nihilistic towards everything after realizing she had killed her own parents. Although she has been present since the early stages, she is counted as the "Eighth Spirit" due to becoming a spirit later on.