YOU SAID:

The world this time is only mine

INTO JAPANESE

今回の世界は私のにすぎません

BACK INTO ENGLISH

This world is just me

INTO JAPANESE

この世界は私だけだ

BACK INTO ENGLISH

I'm the only one in this world

INTO JAPANESE

私はこの世界で唯一の人です

BACK INTO ENGLISH

I'm the only one in this world