YOU SAID:
その箱の中に入ってください
INTO JAPANESE
その箱の中に入ってください
BACK INTO ENGLISH
step inside that box
INTO JAPANESE
その箱の中に足を踏み入れる
BACK INTO ENGLISH
step into that box
INTO JAPANESE
その箱に足を踏み入れる
BACK INTO ENGLISH
step into that box
That didn't even make that much sense in English.