The anger within Zheng was one of mixed feelings that he couldn’t describe. The core of it was his guilt toward the hundreds of thousands of soldiers who died and his sense of helplessness in changing this situation. This helpless sensation had begun to accumulate long before this event. The precise time chased back to when he first entered this realm.
Helplessness when faced with the movie worlds, when placed in a fate unknown to him, when the end was no where to be seen. He strived to become stronger, yet there were still so many stronger than him. This weight continued to exert so much pain. And there were the times he did things against his heart in order to survive.
Humans weren’t robots. They weren’t protagonists in novels who could slaughter people the moment they appeared in texts. He was merely an office worker. He had been changing himself, becoming stronger, but his heart was not the heart of a monster. His heart was still the heart when he was a normal office worker!