Tsumugi would continue to deceive everyone by posing as a regular otaku and a buddy they could rely on while covertly watching and coordinating the Killing Game from behind the scenes. Tsumugi reviewed the regulations on her Monopad when Monokuma officially launched the Killing Game. If she finds anyone breaking the rules, they will be eliminated from the game. Tsumugi uses this opportunity to kill those she deems dangerous to herself or others. She has been known to murder friends, classmates, or even children she has met online. When someone dies in the Killing Game, it is because Tsumugi killed them. She enjoys seeing the fear in people's eyes just before they die. This act of murdering others is what drives Tsumugi to keep playing and not quit. Tsumugi is a master of disguise. She can transform into a figure who looks like one of the victims so well that even she herself isn't sure if she is actually seeing things. This ability is used to investigate crimes where there may have been eyewitnesses. Tsumugi's favorite method of execution is decapitation. She will use a knife or fork to split open the victim's chest, remove their heart, and eat it while listening to music.