One day, I was summoned to this world. Beasts poured out, and an incredible crisis came. My talents couldn’t have been worse.[The player’s talent level is at rock bottom.][Almost all the numbers are hopeless.] Whether you have to become a warrior or a wizard. Whether you’ve gone back in time. You have to take advantage of everything in order to survive. “What about it?” “I’ll use everything I have to survive!” Regressor Instruction Manual novel is a popular light novel covering Action, Adventure, Comedy, Fantasy, Harem, Mature, Psychological, Seinen genres. Written by the Author 흙수저 . Read Regressor Instruction Manual novel online for free.