In late 2020, Shino was accompanying her mother at a post office, when a man armed with a Type 54 'Black Star' handgun entered the building, demanding money from the staff.

Due to Shino's mother becoming traumatized by the ordeal, the girl started living with her grandparents and decided to become strong enough to always protect her mother. In late December 2010,, Shino and her parents were involved in a motor vehicle collision on a secluded mountain road, which resulted in the death of her father as no help could arrive on time. Her combat attire consists of a desert-colored military jacket, bulletproof armor of the same color, and combat boots, as well as a white muffler around her neck. Shino's avatar has thin, pale blue swaying hair that was casually short, but there was a tuft of hair tied up on both sides of her forehead, and indigo colored eyes. She has a black spot on her right hand, left there by gunpowder from the time she fired a gun in real life. She also wears a pair of half-rimmed glasses with oval-shaped lenses. Unlike her avatars, Shino has dark hair in real life. Similar to both of her VRMMO game avatars, Shino has thin hair tied in small ribbons by the sides of her face, with the back cut short.

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