Anpu

Anpu is a cat who frequents in front of the Saiki House. He was saved by Kusuo when he got trapped between two buildings and got attached to him despite Kusuo's continuous rejections.

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Anpu is the cat that shows up a couple times and is also the part of the “everyone else loves me so why doesn’t Saiki” brigade. After being saved by Kusuo, he starts to visit his house to make Kusuo pet him. Later on, Kusuo pets him after Anpu saved Kusuo from a chasing cockroach.

Trivia

 * His name is a pun on Anpusi (Animal-Psi) the ability to psychically communicate with animals.
 * Kuniharu was the one who named him.