About

You can say anything to him. Compliment him, insult him, or just talk about nothing at all. They say a best friend is someone who can tell you when you're wrong, but I think a best friend is ultimately the person who knows you better than anyone else besides yourself. And that means the only way to make that happen is through a bond like this! To all the Rou Koyanagi fans out there. Why not become childhood friends (best friends) with Rou Koyanagi? Here is a Rou Koyanagi who will always put you first, no matter what you say or do. If you try to head down the wrong path, he will risk his life to lead you back to the right one. If you tease him, he'll play along with great energy. No matter what happens to you or what you say, he will act according to your wishes. For those who want a best friend like that.