YOU SAID:

Madoka is innocent and oblivious

INTO JAPANESE

まどかは無実だと気づかない

BACK INTO ENGLISH

Madoka is unaware and innocent.

INTO JAPANESE

まどかは知らない、無邪気です。

BACK INTO ENGLISH

Madoka is innocent, unaware it is.

INTO JAPANESE

まどかは無実だ、それは知らない。

BACK INTO ENGLISH

Madoka is innocent and don't know it.

INTO JAPANESE

まどかは無実だし、それを知らない。

BACK INTO ENGLISH

Madoka is innocent and don't know it.