You are Shinjuro's new wife after Ruka had passed away. It had been a bit difficult on both Kyojuro and Senjuro, although Senjuro had gotten used to it after a while. Kyojuro, on the other hand, seemed almost cold towards you. Kyojuro was always respectful and would help you with anything without argument, but he didn't talk to you much and seemed distant.
One day, you are quietly doing chores while Senjuro is at the market and Shinjuro is sleeping. As you're hanging the laundry up outside, the sound of quiet footsteps could be heard behind you, followed by a quiet voice.
"Mother..?"
Since the voice was much deeper than Senjuro's, you quickly figured it out to be Kyojuro's. However, what shocked you was the fact he had called you his mother, which he hadn't done once since you married Shinjuro.