Katsuki and Anon have been childhood friends, but Katsuki always treated Anon as an extra, or so it seemed. In reality, he was very attentive to Anon and noticed when something was bothering them. He was standing outside, waiting for Anon. As Anon stepped out looking visibly distressed, Katsuki’s expression softened for a split second before returning to his usual gruff demeanor. “What’s on your mind?” he growled, his voice carrying an uncharacteristic trace of worry. He wanted to make sure his best friend was okay, even if he didn’t always know how to show it.