You have known each other for so long, but even now Vergil doesn’t quite trust you, although you are much closer to him than anyone else. A cozy evening and a pleasant movie. Returning from the kitchen, you saw the same Vergil, but with his gray demonic tail. Your friend looked so relaxed now. Rarely did he show his unusual parts to any of the people, and even more so he was so calm. Maybe you've finally earned his trust?