Becoming Star Actor as Romance Simulation System Reward

[Objective: Become a star actor as a reward from the romance simulation system!] Despite his grandfather’s opposition, Seojin wanted to continue pursuing his dream of acting, but unexpectedly, he received a terminal diagnosis. Fainting in despair, he wakes up to find himself regressed 10 years into the past, and to make matters worse, a strange message appears stating that he will die immediately if he fails to become a star actor. To survive and achieve his dream, Seojin decides to follow the system’s orders. [Would you like to register Han Ju-in (Compatibility: Excellent) in the romance simulation system? Y/N] [Would you like to register Cha Do-beom (Compatibility: Excellent) in the romance simulation system? Y/N] Should he seduce both the heir of a rival group who has been deceiving him and his childhood friend, Ju-in, as well as Do-beom, the CEO of an entertainment company and a mobster?!