ONA
Description
Kanade Yoisaki is a central character known for her role as the leader and primary composer of the underground music circle called 25-ji, Nightcord de. This group collaborates anonymously online, and within it, she uses the alias K. She is depicted as a third-year student enrolled in an online correspondence high school, a choice that accommodates her reclusive lifestyle and aversion to direct sunlight, which she dislikes intensely.

Physically, Kanade is characterized by her long, flowing white hair that often has subtle bluish gradients and her blue eyes. She has a slender build and a pale complexion, which complements her quiet and introspective presence. Her height is recorded as 154 centimeters, and her birthday is February 10. Her hobbies include discovering new music, watching movies, reading manga and anime, and viewing art. She possesses an innate and unusual ability to accurately track the passage of time without the aid of a clock.

Kanade’s personality is defined by a deep-seated kindness and a powerful sense of responsibility, which often manifests as a savior complex. She is calm, introspective, and somewhat distant, primarily due to her past experiences and her intense dedication to her craft. She is incredibly hardworking, to the point of routinely neglecting her own basic needs, such as eating balanced meals or maintaining a regular sleep schedule, often falling asleep while working on her compositions. Her diet frequently consists of instant noodles and canned foods, as she dislikes housework and finds cooking to be a hassle. This self-neglect stems from her singular focus on creating music, which she views as her life’s purpose.

The driving motivation behind Kanade’s life and music is rooted in a profound childhood trauma. Her mother passed away when Kanade was young, leaving her to be raised by her father, a musician who worked on commissions. Her father recognized her musical talent and often praised her creations. A pivotal incident occurred when her father was struggling to complete a song for a competition. Young Kanade offered to write a part for the melody, which her father incorporated. The song won the competition, and her specific musical phrase was used in a commercial. Following this success, her father received many requests to create similar music but could not match Kanade’s style. The immense pressure led him to overwork, resulting in a breakdown and hospitalization due to severe depression. Consumed by guilt, Kanade blamed herself for her father's condition. This event traumatized her and reshaped her entire identity. She swore to dedicate her life to composing music that could save people from despair, creating songs that could bring happiness and hope to listeners as a form of atonement.

In the story, Kanade acts as the emotional anchor and creative heart of 25-ji, Nightcord de. She founded the group specifically with the mission of creating songs that can reach and save someone in pain. Her role involves composing all the music for the circle, while her fellow members handle other aspects of production. The circle communicates exclusively through a voice chat platform called Nightcord in the late hours, which is how they form their bond. Her personal SEKAI, a world born from her feelings, is the Empty SEKAI, a surreal and desolate space that reflects her inner emotional state and feelings of isolation.

Kanade’s key relationships are primarily with her fellow circle members. Her most significant bond is with Mafuyu Asahina, whom Kanade is desperately determined to save with her music. She sees in Mafuyu a profound emptiness and sincerely vows to write songs that can make her feel genuine emotion. This commitment becomes so strong that, despite opposition from Mafuyu's mother, Kanade refuses to stay away and eventually begins living together with Mafuyu starting from their second year of school. With Ena Shinonome, Kanade deeply values her artistic contributions, stating that Ena’s art is indispensable to the group. With Mizuki Akiyama, Kanade appreciates their friendly personality and talents, and she has expressed gratitude for Mizuki helping her recall a precious childhood memory. Outside of her circle, she has a friendly relationship with Honami Mochizuki, who works part-time as a housekeeper to help Kanade with chores that she cannot manage.

Throughout her development, Kanade’s arc focuses on coping with her trauma, overcoming her self-imposed isolation, and learning that emotional connections are valuable. She begins with a savior complex, feeling that her music is a curse if it fails to help others. However, through her interactions and deepening relationships with Mafuyu, Ena, and Mizuki, she begins to understand that she too can be saved by these connections. Her initial guilt-driven mission slowly evolves into a more genuine pursuit of shared understanding and expression.

Notable abilities possessed by Kanade include her extraordinary talent for musical composition, particularly crafting emotionally charged melodies that resonate with themes of loneliness, self-doubt, and the desire for healing. She has a history of professional success, as her music was featured in television commercials. Apart from her musical and time-tracking skills, she has no special physical abilities; in fact, due to her reclusive lifestyle, she is described as being quite bad at sports and gets tired easily.