"Nami SOS!" (also known as "Sexy Sailor Soldiers") is a hentai OVA released in 2003, based on Chataro's manga series.
The story follows Nami Koishikawa, a young woman whose voluptuous figure attracts considerable attention. After aiding an injured woman behind her workplace, Nami is entrusted with a peculiar pendant and asked to "take her place." Unaware of its significance, Nami inadvertently activates the pendant during an awkward encounter on her way home, transforming into a "Sexy Sailor Soldier" adorned in a revealing uniform. This transformation grants her magical abilities and a mission to hunt and eliminate demons hidden among ordinary people. Initially, Nami is apprehensive about using her newfound powers, leading to a challenging first encounter with a demon. With the assistance of her best friend, Chisato Yamane—already a veteran soldier—Nami begins to navigate her role in this clandestine battle against demonic forces. The episode blends elements of erotic comedy and magical girl genres, featuring explicit content and themes of supernatural conflict. The animation is noted for its character designs and the dynamic portrayal of transformation sequences, appealing to fans of adult-oriented magical girl narratives. Viewer discretion is advised due to the explicit nature of the content.