Lucas is still struggling with so many files, and he felt very tired. He had so much work to do all day, that he even chose not to go out of his room for lunch.

　　"You still have to eat, Lucas," said Jack. He had invited his friend to have lunch with him, but Lucas had refused without reason.

　　Lucas says that he still has work to do.

　　Come on, Jack knows all too well that Lucas isn't that workaholic. It must have been the man's problem with Liona that ...