Chapter 120

 is the Chapter 120 of Volume 12 of The Disastrous Life of Saiki K (Saiki Kusuo no Sai-nan) published in the 4th of February 2015.

Characters

 * Saiki Kusuo
 * Kaidou Shun
 * Nendou Riki
 * Hairo Kineshi
 * Kuboyasu Aren

Abilities Used

 * Telepathy

Summary
Shun, Riki, Kineshi and Aren are having a talk about what goes on in this time of the year, only for Shun to correct them that it is Halloween. Shun tells them that he will throw a party for the occasion and invite them. They agree to go and Shun leaves. Kusuo says Halloween is more of a Western culture event but it has started to gain attention in Japan fairly recently. Most do not know how to celebrate the day, himself included since he is not very interested. He finds out the other guys do not know how to celebrate it either.

It is the weekend and Shun has decorated the house and put on a Dracula costume. He is excited to see everyone in costumes. The first one to arrive is Kusuo with casual clothing, Shun is disappointed, and Kusuo remarks he should be glad that he came at all. Shun invites him in and allows him to borrow a costume, meanwhile Kineshi and Aren are hiding. The two did not prepare any costumes, surprising each other since they thought the other's casual clothes were costumes, and run to the 100 yen shop. Some time passed and Shun put a lot of fake blood on Kusuo and the two arrive with, what Shun says, terrible costumes. Shun is more disappointed as no one tried to dress up.

Riki arrives and also did not know to wear a costume either. Some girls start walking past the house and are at awe with a costume. Everyone thought perhaps it meant Shun, but the girls meant Riki as himself. Shun, angry and upset, says Halloween is cancelled and runs away. He goes into a coffin, only for Riki to open it up and the others to tell him to let him come out by himself. They thought of starting the party themselves to make him come out, only to not know how to start it. Aren and Kineshi end up showing they brought pumpkins, based on their little understanding on Halloween, and Riki brought char siu pork, based on no knowledge. Kineshi then brings up the idea that a big pumpkin contest is part of Halloween, disqualifying Riki from the competition.

They then hear the door knocking. Riki opens the front door to find kids trick or treating. Kineshi tells them that they need to give them a treat, gives them the pumpkins, only for all of them to get squirted with their water guns. More kids arrive and they kept getting hit. In the distance Shun is laughl ing at their misfortune. Kusuo then makes Shun see some type of monster to scare him for shutting himself in the coffin for 2 hours, saying trick or treat. Shun starts throwing candy, scared after the event. Kineshi then realizes that they were supposed to give the kids candy, all of them finding out the meaning of Halloween. Kusuo is walking away with a lollipop, stating he got his candy so he will be going home.