Sachi
, サチ
This individual is part of the «Black Cats of the Full Moon» guild, which consists primarily of computer research club members from the same high school in reality. However, unlike her fellow guild members, she wields a two-handed long spear and has a lower level compared to them. Despite initially intending to remain within the Starting City, she departed due to fear of monsters and an anticipated demise. Kirito describes her as someone who is similar to him in terms of social awkwardness and a desire for solitude, yet also fears loneliness.
She died along with 4 other members from the guild, as they were lured into a trap filled with monsters. Even in her final moments, she still believed Kirito would protect her. Her final words to Kirito were "Thank you, Goodbye." She leaves a Kirito a Christmas message were she hums "Rudolph the Red-nosed Reindeer" and thanks Kirito for all the time they had spent together.
