In a single-father household, J-cup busty idol Yuzuki Marina appears as part of a documentary program. The show's premise is to introduce a temporary mother figure into families lacking a maternal presence and record their interactions. However, the men in the household become increasingly drawn to Marina, who plays the motherly role, and their growing attraction is accidentally captured on camera. As their feelings intensify, the documentary captures how these emotions affect Marina and the complex dynamics that unfold. A shocking, intimate portrayal where family structures and raw human desire collide.