YOU SAID:

I am the dark boy who runs in the yesterday after tomorrow.

INTO JAPANESE

私は明後日、昨日走る暗い少年です。

BACK INTO ENGLISH

I am a dark boy who runs yesterday the day after yesterday.

INTO JAPANESE

私は昨日、昨日走る暗い少年です。

BACK INTO ENGLISH

I am a dark boy who runs yesterday and yesterday.

INTO JAPANESE

私は昨日と昨日走る暗い少年です。

BACK INTO ENGLISH

I am a dark boy who runs yesterday and yesterday.