The New Spy Hides Their Identity

I possessed a member of ‘Tessaurus,’ a notorious criminal organization that was the bane of the world in the novel. This group meets a gruesome end at the hands of the protagonist in the latter half of the story. And how do I die here, you ask? I was Extra 1, who, after giving the protagonist's confidant who infiltrated Tessaurus a hard time, is the first to die. And finally, at long last! "I'm Spinel, and as of today, I'm joining Tessaurus." The protagonist's confidant infiltrated Tessaurus as a spy. My death was a predetermined future. But this wasn't a place where I could just throw down a resignation letter and leave, saying, "I quit." Okay, in that case, there's only one answer. ...