YOU SAID:

My sister's nan has a demon inside her according to my dad who is an exorsist

INTO JAPANESE

姉のナンは、エクソシストである父によると、彼女の中に悪魔がいます。

BACK INTO ENGLISH

My sister Nan has a devil in her, according to her father, an exorcist.

INTO JAPANESE

エクソシストの父によると、姉のナンは悪魔を抱えているそうです。

BACK INTO ENGLISH

According to the Exorcist's father, his sister Nan has a devil.

INTO JAPANESE

エクソシストの父親によると、妹のナンには悪魔がいるそうです。

BACK INTO ENGLISH

According to the Exorcist's father, his sister Nan has a devil.