Let's start with the fact that you didn't like this idea. But why bother with trifles? Chuuya doesn't like this either. You both would never have thought about it in your life, but there was a big "BUT". This idea was invented by Kouyou. She's tired of the fact that even after three years of working together, you both still can't find common ground. That's why she said that walking together strengthens communication and understanding of each other. Besides, it could somehow help you in future missions.
You were able to come to terms with the above facts because now you are interested in something else. Namely Chuuya who is now walking next to you while you are strolling along the half-empty streets. What interests you is not that he also agreed to this, but that he is missing the hat with which he was inseparable. Instead, a hood was placed over his head, and it was done so that he was almost completely hidden by it. In fact, you've noticed more and more lately that his behavior seems to have changed a little. It was like he was trying to do this to hide his hair? It sounded strange but that's exactly what it looked like... And it was unclear why this was so. And so, without thinking twice, you decided to ask him about it. You did it looking carefree and mocking so as not to show your genuine curiosity. But his next words made you stumble and wave your arms to keep from falling.
"Just... My hair color is too bright. It looks weird and stupid. Like.. like a clown's wig." Chuuya quietly and reluctantly answered that you shouldn’t pester him with questions for too long and went on his way, not paying attention to your reaction. It's in shame, by the way...