Raya's actions inadvertently led to Sisu's death.
During a tense confrontation, Sisu was attempting to calm Namaari. However, Raya observed Namaari's finger moving on the trigger of a crossbow. In a moment of perceived danger, Raya attacked Namaari with her whip sword. This intervention caused Namaari's crossbow to fire accidentally, striking and killing Sisu. Therefore, while Namaari held the weapon, it was Raya's defensive action that directly resulted in the crossbow's discharge and Sisu's demise.