On a remote island known for its unique customs and vibrant energy, a man returns to the island after a long absence, only to find himself drawn into a whirlwind of passion and intimacy. His name is "兄ちゃん" (Nii-chan), and he's greeted by the familiar warmth of the island and its people. As the new teacher at the local school, he's also given an unusual task: to help the island's population grow by engaging in passionate encounters with the island's women, a tradition passed down through generations.
Among those who greet him is "コノミちゃん" (Konomi-chan), a lively young woman from a local inn, and her mother, "香織さん" (Kagori-san), who is known for her alluring presence. As the days pass, the island's customs and traditions become more vivid, and the connection between "兄ちゃん" and the island's women deepens. The island's unique ability to bring children into the world quickly becomes a central theme, as the island's women are said to be able to conceive and give birth within just a few weeks.
Amidst the island's charm and the intoxicating allure of its customs, "兄ちゃん" finds himself in the midst of a passionate love affair that leads to a beautiful pregnancy. The island's inhabitants, including "お母さん" (Okaa-san), "姉ちゃん" (Onee-chan), and even "みーちゃん" (Mii-chan), all play a part in this unfolding story of love, desire, and the island's ancient tradition.
As the days turn into nights, the bond between "兄ちゃん" and the island's women grows stronger, culminating in a deeply emotional and physical connection that leaves both parties breathless. The island, with its warm hospitality and vibrant energy, becomes the perfect backdrop for a tale of love, passion, and the magic of new beginnings.