Hikari Takarazuki, attempting anal for the first time, has never had even a single finger inserted, let alone a penis. To prepare her anus, she starts with a thin toy, but quickly runs into difficulty. She desperately endures through tears. Attempts to insert a penis at this point fail completely—it simply won't go in. Yet despite her continuous crying and resistance, they forcefully push through and achieve a powerful, intense penetration into her anus! Will this brutal challenge ever come to an end?