YOU SAID:
i'm gonna fight sans undertale
INTO JAPANESE
私はアンサンブルのサンと戦うつもりだ
BACK INTO ENGLISH
I will fight the ensemble Sun
INTO JAPANESE
私はアンサンブルサンと戦うだろう
BACK INTO ENGLISH
I will fight Ensemble Sun
INTO JAPANESE
私はEnsemble Sunと戦うだろう
BACK INTO ENGLISH
I will fight Ensemble Sun
That didn't even make that much sense in English.