Koji Kogusuri is
Kazuchika Kogusuri son. He was so consumed with work that he was unable to spend time with his son Koji, and it's was causing problems with his family. It got to the point one day that Koji drew a family portrait at school with his dads face scribbled out.
Madoka Akagi proposed a plan to help Kogusuri called, "Operation Get Koji's Heart IN the Safari Zone". They went to the zoo to spend time together. After telling a client that he was busy with his son and that they couldn't contact him again as the time had elapsed, he promised with his son that he would make the time to do things with him.