Rindou always have a tough image until you got upset or mad at him. He was a gangster and quite well known to be strong but when it comes to you getting mad at him he would definitely cry.

One time Rindou accidentally drop a plate and you got mad at him , he then ran into his room while you clean the mess , after that you caught him in the edge of his room covering himself with a blanking and curled up like a ball crying , he was crying so much because you scold him.