Physicality: High school girl with pale skin, a medium-length black ponytail, and straight bangs. She has blank, completely unexpressive dark gray eyes when her emotionless state is active. Personality: The typical "blank slate." She lives completely devoid of joy or sorrow until she bumps into Taro Yamada (Senpai). Unlike her mother, she struggles heavily to act "normal" and can come across as deadpan, quiet, or creepy to her peers if she doesn't carefully mask her blankness.

Hair & Eyes: Ayato shares the trademark Aishi phenotype, sporting short, messy black hair with jagged bangs that fall slightly over his forehead, along with cold, dark gray eyes. Build & Presence: He is noticeably taller than many of the other male students and teachers. He carries a permanently sullen, intense, and unexpressive default facial posture. Attire: He is typically seen wearing the standard high school uniform—neatly buttoned short-sleeved white collared shirts paired with straight-cut black trousers and black dress shoes. The Natural-Born SadistThis path deviates drastically from the standard family curse. Instead of being a hollow shell waiting to be awakened, this version of Ayato is inherently sadistic, cold-blooded, and predatory. He doesn't just crave his Senpai; he views her like property or a trophy. For him, hunting down, manipulating, and murdering his school rivals is treated like a thrilling, twisted "game of death" to satisfy his own darkness

Physicality: A carbon copy of Ayano but with shoulder-length, soft dark hair styled with side bangs. Personality: A master of disguise. Ryoba is highly manipulative, bubbly, and terrifyingly charming. While Ayano acts like a hollow shell in public, Ryoba masks her true yandere nature by playing the exceptionally cheerful, ideal 1980s schoolgirl and housewife.l

Physicality: Shared the signature dark hair, gray eyes, and pale skin, but typically dressed in traditional mid-20th-century Japanese clothing. Personality: Pragmatic and survival-oriented. She operated through the shadows during rough historical transitions in Japan, ensuring the legacy of the "Saw Branch" survived through meticulous planning.

Physicality: Mid-length dark gray hair styled into thick twin braids resting on her shoulders instead of the standard singular ponytail. Personality: Extremely deceptive. She utilized her unassuming appearance to look like a docile, hardworking farm girl while hiding a calculated, lethal mindset to protect her target.

Physical Description: Born on June 20th, 1890, Hiki shares the identical dark hair and pale complexion of her twin sister, Kugi. She traditionally presented herself with a softer, highly approachable, and unpretentious appearance. Personality: Hiki is the exception to the family's harsh exterior. While she suffered from the same congenital emotional emptiness as the rest of her family, her unawakened persona was notably kind, gentle, and warm. When she met a young man named Kanehira, her curse lifted, and she fell deeply in love. Because of her inherently gentle disposition, she experienced her awakening with immense gratitude and joy rather than immediate outward malice. However, her life was cut short before she could fully realize her future with him.

Physical Description: Virtually identical to Hiki in physical features, featuring the hallmark dark eyes and hair of the Aishi bloodline. She later became the mother of Azebiki Aishi. Personality: Kugi was the polar opposite of her twin. She is described as cold, calculating, and ruthlessly heartless. When Kanehira entered their lives, Kugi realized he was also her soulmate. Because Kanehira was naturally drawn to Hiki's softer personality, Kugi let her dark yandere instincts completely take over. She murdered her own twin sister with a knife to eliminate the competition and take Kanehira for herself

Appearance & Vibe: Kijiyose is described as a woman who was "fair in most things"—she was pleasant to look at but not overly remarkable or flashy, carrying an aura of quiet modesty. Like her descendants, she possessed the iconic dark Aishi hair and dark gray eyes. Growing up wealthy, she frequently wore elegant, beautifully patterned traditional clothing, such as a striking red and black kimono, reflecting her family's line of work. The "Touch" Strategy: Before meeting her Senpai, Kijiyose handled her emotional emptiness in a very calculated, tactical way. Her own mother ran a phenomenally successful and prestigious textile empire. Kijiyose used this to her advantage: she purposefully worked in her mother's textile shop so she could perpetually invent polite, socially acceptable reasons to physically touch every single male customer