Chapter 90

 is the ninetieth chapter of Volume 9 of The Disastrous Life of Saiki K (Saiki Kusuo no Sai-nan) published in the 4th of July 2014.

Characters

 * Saiki Kusuo
 * Hairo Kineshi
 * Nendou Riki
 * Kaidou Shun
 * Takahashi
 * Teruhashi Kokomi

Summary
Saiki's class has a karaoke party and Saiki is only there for the Grand Chocolate Parfait. However, everyone in the class must sing, and Nendou's voice has the power to kill...