Chapter 105

 is the Chapter 105 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 Kusuke
 * Saiki Kurumi
 * Saiki Kuniharu
 * Kaidou Shun
 * Nendou Riki

Summary
Kusuke has never won any thing against his younger brother. He hopes to change that