Oh, I don't want to disturb him or raise his stress. Given the mentality of employers, I completely understand that they don't want their employees to work on private projects (especially on sex games) during their working hours, where they are paid to do some other job. And I would not want to get him into a dangerous situation. He seems to be a very friendly person --- especially when you look at the behavior and mentality of the "bad females" in his game.
So to summarize: I will just wait patiently, and I am convinced that one day he will respond. Endurance is a virtue, expecially in Japan.