OBA-116 Yuko Kuremachi under the armpit that looks like an aunt's glance

Shinji lives with his mother after losing his father. One day, my mother was hospitalized with a cecum. Shinji will live alone for a while. For a while, my aunt Yuko came home to see Shinji. Shinji was fascinated by Yuko, who cleverly dried the accumulated laundry and put away the dishes on the shelves. No, to be correct, I was fascinated by Yuko's "armpit". Shinji has no choice but to worry about his aunt's "armpit", which is so beautiful.