[To be Added...]
Mio is often the test subject of dresses made by Sawako.
Azusa Nakano Edit
After she joined the club, Azusa was the one who had to suffer weird dress-ups by Sawako instead of Mio. Azusa also found Sawako's negligence towards the club activities and her support to 'tea-time' irritating in the beginning but she soon blended in like the rest of the group.
Yui Hirasawa Edit
Being an absolute beginner in music and playing guitar Yui was trained by Sawako. Sawako's training was useful but in the process Yui ended up losing her voice and was unable to be on vocals in the first year summer fest. However they share a close student-teacher relationship.