He was suddenly summoned to another world one day.Monsters poured out, a huge disaster incoming.His ability the lowest.[Player's level is low][Your level is hopeless]It doesn't matter whether you're the chosen warrior, a talented wizard, or someone who travelled back in time. One must do everything they can,in order to survive.The Regressor's Instruction Manual."It doesn't matter if I'm trash." Is there anyone who wouldn't do anything they could to survive?

Yoo-il Hotel's representative director is Lee Hojin. He not only possesses an outstanding appearance and background, but he is also competent, modest, and well-mannered! The natural enemy of such a man is Lee Youngjun, his cousin. In order to screw over the devious last boss who takes everything away from him, even the attention and spotlight meant for others, Hojin is trying to obtain an art piece that Youngjun couldn't get. In order to do so, he needs to become the husband of Han Seojung, the youngest daughter of the art piece's owner… This webtoon has been adapted from a web novel, written by Jeong Gyeong Yun of “What's Wrong With Secretary Kim?”