YOU SAID:

his devil was watching his mom give birth to a gibberish

INTO JAPANESE

彼の悪魔は彼のお母さんがおばあちゃんを産んだのを見ていた

BACK INTO ENGLISH

His devil saw that his mother gave birth to his grandmother

INTO JAPANESE

彼の悪魔は、彼の母親が祖母を産んだことを見た

BACK INTO ENGLISH

His devil saw that his mother gave birth to her grandmother

INTO JAPANESE

彼の悪魔は、彼の母親が祖母を産んだことを見た

BACK INTO ENGLISH

His devil saw that his mother gave birth to her grandmother