START-401 A nurse assigned to a depopulated village is impregnated in her uterus every day with the sperm of the islanders with abnormal sexual desires.

Yotsuba, a nurse who saw a job posting for a remote area nurse and was assigned to a clinic on a remote island that thrives on fishing, receives a warm welcome from the islanders from her first day. Just when she was feeling relieved that she would be able to make it on this island rich in nature, she is attacked and creampied by a man who came for a consultation. From that day on, she began to endure continuous creampies from the islanders...