The Shameless Sports Day. Held only in a certain region, it is a sports meet where every event is sexual. For the students, it was a once-a-year festival where they could do all kinds of dirty things in public, as much as they wanted. But on the morning of the day itself, in an atmosphere buzzing with anticipation and excitement, a small incident occurs. Two girls get into a fight over a simple misunderstanding…!

“Let’s settle this at today’s Shameless Sports Day! The loser has to obey whatever the winner says!”
“…Fine. I’ll take that bet. Wash your neck and wait.”
One of them, to clear up the misunderstanding and make up. The other, to take out the grudge born from that mix-up.

Each with her own reasons in her chest, the girls make their way to the grounds where the Shameless Sports Day is held. —And so. For the two of them, a battle they absolutely cannot lose begins…! Fierce Battle! Shameless Sports Day!

~Sweat it out, moan it out, cum it out~