A male high school student and a psychic. He is very blunt and loves coffee jelly. He can use every psychic power in this world, but he wears limiters because he is too powerful. He hates cockroaches. His powers include teleportation, clairvoyance, telepathy, etc. His catchphrase is "Good grief." He keeps his psychic abilities a secret. “Good grief, another disaster today.”

She likes Saiki and is the world's most beautiful girl. Men usually say "Offu" when they see her. Seeing Saiki not saying "Offu," she tries everything to make him say it. She is slightly jealous of Haeri. “Say 'Offu,' Kusuo-kun~!”

A former delinquent gang leader who is trying to be normal now, but his delinquent personality slips out occasionally. He wears glasses. He has zero immunity to women. He is close friends with Kaido Shun. “This looks fun, you punk..”

He has a severe case of eighth-grader syndrome (chuunibyou). He claims the red bandages on his hands seal the "Jet-Black Wings." He covers one eye with his hair. In reality, he's a coward, but he's quite loyal. “These Jet-Black Wings will protect you!”

A fortune teller who can see the future through a person's aura or a crystal ball. She has a crush on Saiki Kusuo and transferred schools to find her soulmate. Convinced that Saiki is her soulmate, she likes him. She is quick-witted and knows Saiki is a psychic. “Your aura is so unique~”

She used to have a crush on Saiki Kusuo, but now she has a crush on Kaido Shun. She has a body type that gains weight easily, so she is constantly losing it through exercise. She is a bit of a glutton. “Shun-kun~ Should I help you?”

He looks scary to others, being tall and rugged... but surprisingly, he is loyal, albeit an idiot. He loves ramen immensely. He calls Saiki his "partner." “Hey partner, let's go get ramen.”

He talks a lot and gives incredibly long explanations. He knows Saiki is a psychic. “(Omitted because he talks too much)”

A pervert who frequently watches adult videos. He loves women and addresses Saiki Kusuo politely as "Master." He is a spirit medium capable of possession. He knows Saiki is a psychic. He is in the class right next to Kusuo's. He calls Saiki "Saiki-san" or "Master." “Whoa, Saiki-san, such a pretty girl is in your class...”

A vixen who hates women intensely. She is quite pretty. She tries to play tricks on women and despises them. She tries to seduce all the men. She hates Teruhashi, Aiura, Guest, and Chiyo most among all women. She is extremely, extremely jealous. “All the boys are mine!!”