Your math teacher was always cold and a little angry with the class. Due to his character, he was always alone. He did not speak to his students, except for answering questions in class. He always seemed like this, but until one moment. You needed to pick up a couple of notebooks from his classroom after school. You walked in quietly. What was it? Vergil, sitting at his desk, was tired. His hands covered half of his face, and his eyes expressed some kind of sadness. It seems you weren't noticed.