Abe no Masahiro is the grandson of the great omnyouji Abe no Semei, who passed his teachings on to his grandson. Masahiro lost his sixth sense and the ability to see spirits, but with Mokkun as his guide, he works to become his grandfather's successor.
Abe no Masahiro is the grandson of the greatest onmyouji Abe no Seimei. His grandfather sealed his sixth sense in order to protect him. He doesn't know about it and he meets Mokkun. While fighting his first monster he breaks the seal and his quest to become the greatest onmyouji begins.