A man who works in the city returns to his hometown for the first time in a long time during summer vacation. His tanned childhood friend Ria is there. Ria has always been fond of the man, and they always go everywhere together. When he meets Ria for the first time in several years, she is still as innocent as ever, but she has grown into a completely mature woman, and he is taken aback by her unprotected cleavage and panty shots. Then, at night, she sneaks into his bed, and the man can't help but...