Blood Drainer (Japanese: 血液水切り) is Shako Family line's prized katana and symbol, Satoko used this katana to kill Jennie-Olive Campelle, who touched the latter's breasts while watching AKIRA, it was made prior in 660 BC, its current wielder is Toshio Samo. it was redesigned multiple times to reduce its aging


Blood Drainer is a katana covered in blood with a gold and black handle.


  • The first wielder was Ryoku Shako (Prior 660 BC-599 BC)

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