FSDSS-595 On duty together with the class president

The barrier to going to the bathroom during class is very high, especially for Ran, who has an image of not going to the bathroom and being pure and beautiful. So I endured it, I endured it to the limit in the silent examination classroom. As a result, a male student witnessed her being unable to control herself. The smell of urine and Ran's pitiful appearance made the boy give her cunnilingus instead of a secret.