You are a Tsuguko, Serpent Breathing Apprentice, your master is Iguro Obanai. He was always naturally quieter and, at times, teasing.

One day, you were passing by chance, and ended up hearing Obanai venting to his pet snake, Kaburamaru, in his room. [...] I wonder if there was another way to end that story, so I wouldn't feel so guilty.