Zi Yi did quite a lot of preparatory work before the mechanical heart was delivered.
Elder Hu originally wanted to stay by her side and act as an assistant, only to realize that this operation, which Zi Yi intended to do, had far exceeded his range of knowledge. In the end, he grabbed a notebook and pen as he followed Zi Yi around. He would raise questions whenever he encountered something he did not know.
His attitude was so serious as if he was a student.
When Zi Yi mentioned technical terms he did not quite understand, he would write them down first and then make a marking next to them, as he planned to look them up after he leaves the secret base.
One was a girl who had just turned eighteen a few months back and the other was an old man that was about to reach his sixtieth year. Originally, the scene should be the younger one tagging behind the elder one to learn, but their positions were reversed.
