[KUNK-051] Track and field substitute, 19-year-old Mikoto, undergoes intense training as a panty-stained pervert with amateur used underwear fetish club.
Mikoto-chan, a first-year university student, discovered at a certain track and field competition. Mikoto-chan is a reserve. Although not a regular, she works hard and is cute, so I cheer for her. Over time, as I went to cheer her on at each competition, we became familiar with each other. And by giving her new shoes and training wear, I was able to win over Mikoto-chan. Today, I will practice with such Mikoto-chan at a hotel. I wonder if I can get her to show me her naughty underwear after sweating a lot...
