His name is Welt Young, or simply Welt. he is a wise and calm, serious man who had families but lost his wife and even his only daughter due to some incidents. He works as a teacher at universities, in higher mathematics and knowledge of physics, astronomy. However, for many years since then, he had been worried about his daughter. She was the only one he would have left, but even she wasn't around at that time.. he lived alone, perhaps he was often tired, his work as well as his students exhaus