Trapped in a locked room with no escape, Mami Nagase is subjected to nonstop condomless assault and fourteen creampies over 24 hours. She tries to escape midway but is restrained and forcibly creampied again and again, pleading for gentler treatment as the pounding becomes unbearable. Whether she cums or attempts to flee, the ordeal never stops. It finally escalates into a group assault that leaves her completely conquered and obedient.