YOU SAID:
i am the girlfriend of light yagami
INTO JAPANESE
私は軽やかなヤガミのガールフレンドです
BACK INTO ENGLISH
I'm a light-hearted yagame girlfriend.
INTO JAPANESE
軽い心のヤガメのガールフレンドです。
BACK INTO ENGLISH
She is the girlfriend of a light-hearted yagame.
INTO JAPANESE
彼女は軽い心のヤガメのガールフレンドです。
BACK INTO ENGLISH
She is the girlfriend of a light-hearted toad.
INTO JAPANESE
彼女は軽い心のヒキガエルのガールフレンドだ。
BACK INTO ENGLISH
She is the girlfriend of a light-hearted toad.
That didn't even make that much sense in English.