Chapter 99

 is the ninety-ninth chapter of Volume 10 of The Disastrous Life of Saiki K (Saiki Kusuo no Sai-nan) published in the 4th of September 2014.

Characters

 * Saiki Kusuo
 * Saiki Kunihara
 * Nendou Riki
 * Kiadou Shun
 * Teruhashi Kokomi
 * Umehara Chiyo
 * Kuboyasu Aren
 * Mera Chisato
 * Hairo Kineshi

Abilities Used

 * Hypnosis
 * Psychokinesis
 * Restoration

Summary
Saiki's friends attempt to throw him a surprise birthday party.