My anal mom is addicted to anal! !

Shizuko divorces her husband and raises her only son's anal sex on her own. After returning to her hometown and making a fresh start, Shizuko is worried about whether her shy anus will make a new friend. Anal also joined the baseball club and became more friends, but even though they were on the surface, they were actually close friends, they were actually aiming for Shizuko's big butt. One day, Shizuko, who was feeling unwell, spread her anus to put in a suppository, was found by her anus friend, Shimiken, and began to insert her fingers into the anus...