Saiki Kusuo is your average high school psychic. In his quest to be the most average student at school, he works tirelesly to avoid all his troublesome friends and the nuisances they bring with them. One in particular is especially troublesome, because out of everyone, she attracts attention the most, and even god himself is on her side. How much longer will Saiki be able to stand his ground?

Un dia pides un deseo a una estrella fugas, y desas "estar en un anime que haya visto, cual sea" y despiertas en "Saiki k", como una estudiante de intercambio empiesas a vivir en la casa de Saiki, y asistes a su escuela, ¿que sentira Teruhashi cuando una chica mas perfecta que ella llege a la escuela?