Reversing Life With Future USB! is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here.
Apart from his warm appearance, Kim Jun-young, a tutoring center instructor, doesn’t have much to boast about, including his educational background and teaching skills. However, everything changes after he meets an elderly man. He obtains a USB containing all the past questions for nationwide subject assessments in middle and high schools, including midterms, finals, and even the college entrance exam.