Heavy Metal Princess / Princess of Heavy Metal

The main character of the visual novel "Heavy Metal Princess" was fired from his job and now he has to go back to part-time work. What to do? - he thought, and a moment later he found himself on the doorstep of a strange cafe or restaurant, on which was inscribed "Secret Society of Evil Forces". He was met and treated like a king, given a hot cup of tea, which soon turned out to be unusual and he began to look like a dragon. Now he is the leader of the "Society of Evil Forces" and great responsibilities have been placed on him. That same day, our hero learns that his grandfather is dying in the hospital and leaves him a will stating that he must lead the "Earth Defense Army" and become its commander-in-chief. Thus, our hero became the leader of the forces of evil and good, but all he needed was a new job...