Susanoou

Story revolves around high school freshman Shingo Susa as he is invited by his crush from middle school Sayuri Shiroyuki to the school's supernatural club. Over the course of the series Susa begins to gain supernatural powers, something that prodigy Rei Uryuu, attempts to awaken to bring out the psychic giant, Susanoou to destroy humanity and establish a new world order.

(Source: MU)