She asked Wolverine to kill her to avoid a painful death and preserve her honor .
Mariko was poisoned with tetrodotoxin from a blowfish by an assassin named Reiko , in the employ of her rival Matsu'o Tsurayaba .
Mariko asked Wolverine to kill Mariko to avoid a painful death and preserve Mariko 's honor .
Mariko was poisoned with tetrodotoxin from a blowfish by an assassin named Reiko , in the employ of her rival Matsu'o Tsurayaba .