Gekkan Trilemma

The goal is to create an interesting manga!! Yamanoi is a rookie manga editor who works hard every day with his dream in mind, along with his best friend. One day, he learns that the magazine he is assigned to, "Monthly Trilemma," is in danger of being discontinued. To help turn it around, he is headhunted by a talented editor whose works have sold over 50 million copies!

(Source: Ultra Jump, translated)