YOU SAID:

I wanna commit no to everyone in this school aka shooting them ;)

INTO JAPANESE

私はこの学校の誰もが彼らを撃つことを約束したくない;）

BACK INTO ENGLISH

I don't want anyone in this school to promise to shoot them;)

INTO JAPANESE

私はこの学校の誰にも彼らを撃つことを約束してほしくない;）

BACK INTO ENGLISH

I don't want anyone in this school to promise to shoot them;)