|“||Praise... Good girl... Unfair... Sachiko...||”|
—- Sachi Shinozaki, Corpse Party: Blood Drive (CHAPTER 07 『 Determination 』)
Sachi is a short, thin girl. She has short dark blue hair, with a part of the front bangs growing long past her face. She has large black, alien-like eyes and a wide, scarecrow-like mouth. She wears a navy blue dress, and can be seen carrying a hatchet around.
Sachi is a completely malicious spirit. She envies Sachiko for being born and wreaks havoc just for her own amusement, much like her sister used to. Having no sense of right and wrong, she can't be reasoned with unlike with Sachiko, and she only acts according to her whim and emotions. She also speaks incoherently, at best being able to string together loosely related words, but mostly just speaking in growls and noises.
Sachi is the unborn older twin sister of Sachiko Shinozaki, a phenomenon called the vanishing twin, in which she died in utero of her mother and then completely reabsorbed by the other twin. However, when Sachiko absorbed Sachi, she tried to fight back by biting her, resulting in her two teeth getting lodged near her heart and Sachiko had to undergo a surgery to remove them.
Corpse Party: Blood Drive Edit
CHAPTER 00『 A Faint Light 』 Edit
CHAPTER 03『 Pain 』 Edit
Sachi appears near the end of the chapter disguising herself as Yuki Kanno. She first appears to guide Ayumi Shinozaki out of the pool of blood in the girls bathroom. When Ayumi comes to, she notices that "Yuki" has the Book of Shadows in her hand. She asks for it, but instead of replying, Sachi just throws it out the window. Horrified, Ayumi runs down to the courtyard where she thinks the book fell, but is unable to find it anywhere.
Suddenly, Sachi and a battered, bruised Aiko Niwa appear. Aiko reveals to Ayumi that the Book of Shadows actually isn't in Heavenly Host, and that Sachi had just lured them there by manipulating Aiko's "Thoughtograph" to show what they desired, the Book of Shadows, having pulled similar tricks to get people to Heavenly Host. Sachi then decides to set Aiko alight, who then runs off screaming in pain. Ayumi chases after her, all the while Sachi cackles wickedly.
CHAPTER 05 『 Breakdown 』 Edit
Sachi appears in a cutscene, watching people who committed suicide as the curse of Nirvana in the real world grows.
Bessatsu Corpse Party Edit
Prologue EditSachi has the same role as in CHAPTER 00『 A Faint Light 』of Corpse Party: Blood Drive.
- Sachi's design might be a reference to Baby / Embryo Statue from Corpse Party (PC, PSP, iOS, 3DS). She shares this trait with Misuto Kiriya, who's designed after the Marble Statue. Both are the primary antagonists of Corpse Party: Blood Drive.
- In the English version of Corpse Party, Yoshie Shinozaki's nickname for Sachiko is Sachi (さっちゃん Sacchan). This is a localization error, introduced before Sachi is conceived as a character.