Beneath the slums, there was a very special research base. The reason for establishing the base here was simple, as it was very easy to obtain test subjects.
Zhang Tianyi was a promoter for the Church, also known as a promotional Priest. His temples were slightly graying, but the hair on his head was still jet black. His features were well-defined, his stature tall, and his physique muscular. At first glance, Zhang Tianyi looked like a man in his forties. But only those who had interacted with him knew that the current Zhang Tianyi was already 81 years old.
