Chapter 175

'''PSImall But Clever! The Adventures of Riki Jr. Mark II''' is the 175th chapter of The Disastrous Life of Saiki K. (Saiki Kusuo no Psi-nan) published on the 7th of December 2015.

Characters

 * Saiki Kusuo
 * Nendou Riki
 * Kaidou Shun
 * Kuboyasu Aren
 * Kojikara No. 2
 * Matsuzaki
 * Mera Chisato (mentioned)

Abilities Used

 * Telepathy
 * Telekinesis
 * X-Ray

Short Summary
Kojikara No. 2 is back, and Riki states that she has gone everywhere with him. The guys try to test her but she ends up pooping on their hands. Later the boys get stuck inside where the gym equipment is stored. She tries to open the door for them, only to get caught by Matsuzaki. Matsuzaki opens the door for them but get in trouble for bringing a hamster to school.