PK Academy

PK Academy is a private high school where the main protagonist, Saiki Kusuo and his circle of friends attends. In total, it has 542 students of which only two students knows that Kusuo has Psi powers.

Classroom
The school classrooms are labeled according to Psychic Zener Card symbols [🌕➕∭⬜✰]. The first number represents the year they're in and the second symbol is a Psychic Zener Card symbol, each one is used in place of a number. So Toritsuka's class is 2 - ➕, where the ➕ stands for 2 so he's in 2nd Year - Class 2 and the ∭ looking symbol for Saiki's classroom number stands for 3, so he's in 2nd year - Class 3.

Club

 * Baseball Club
 * Kokominzu
 * Newspaper Club
 * Occult Club
 * Tennis Club

Sports festival

 * School event that is usually held every year in the fall. Each class is a groups working fighting for victory.

School excursion

 * PK events that was done during the 2nd year of the students. Every year in the middle of the summer, their destination is Okinawa.

PK Festival

 * School event that is usually held every year in the fall.

Marathon

 * School event that is usually held every year in the winter.

Faculty
Principal Kanda Shinasuke

Teachers

 * Matsuzaki
 * Hatakeyama
 * Igarashi
 * Shima Kyouka
 * Niwayama Kyuuji

1st Year

 * Makino Arisu
 * Rifuta Imu
 * Maki Shiiko

2-🌕
Class 1 was described as the clever class because in grade tests many become the top ranking students. They're not particularly athletic.
 * Tanaka Ichirou
 * Sugiyama Haruo
 * Kihachi Bunta
 * Nishi Soujirou

2-➕
Class 2 have the highest proportion of muscular students which are affiliated with sports club. It is said that their strength are at Nendou-level.
 * Toritsuka Reita
 * Shinoda Takeru
 * Takayuki Maeda
 * Shinya Nakanishi
 * Satou Hiroshi
 * Ooshima Yuuji
 * Oohori Kouichi
 * Itano Yoriko

2-∭
Class 3 is mostly composed of main characters.
 * Saiki Kusuo
 * Nendou Riki
 * Kaidou Shun
 * Aiura Mikoto
 * Hairo Kineshi
 * Kuboyasu Aren
 * Mera Chisato
 * Saiko Metori
 * Teruhashi Kokomi
 * Takahashi
 * Yumehara Chiyo
 * Zolbe
 * Sawakita
 * Murata Shuuji
 * Yokota Jaga

2-⬜
Class 4 is class with a resourceful leader, a second clever one (class).
 * Tanihara Kenji
 * Hotei Tomotaka
 * Haruno Yasuo

2-✰
Most of these students are wearing glasses
 * Matsuda Ippei
 * Mishima Nobuaki
 * Mikami Aiko
 * Kumi Kouji

3rd Year

 * Kongou Tsuyoshi
 * Morikawa Minoru
 * Ninomiya Kaneko
 * Makishima Seiya
 * Takizawa Kazushi
 * Akanishi Shinichi
 * Mineo Nobuaki
 * Kuramoki Shinsuke

Other Students

 * Gyuu Hikari - Ghost Girl
 * Jouten Manako - Newspaper Club Manager, she appeared in Chapter 156
 * Higashino Bungo - enrolled at 20 years ago who hits off another girl named Murakami Akiko, he appeared in Chapter 170
 * Ueda - 1992 Alumni, currently a popular comedian, he appeared in Chapter 176