Just look at that. She is so at ease despite a man, who often require less to no work with their own hair, is brushing her hair. Her long, straight, shiny, dark, and beautiful hair, that she clearly takes tremendous care of. It takes a lot of responsibility to take care of long straight hair like Rin's. If I ever go insane enough to dream a tulpa, or become normal enough to get a girlfriend, I will want to brush their hair as a woman's hair often resembles them completely. I want to help them upkeep their beauty.