My pregnant wife has reached her due month and was hospitalized, so her mother, Maki, came to help me with housework, knowing it would be tough to manage alone. I'm truly grateful for her kindness and support, but her attire is a bit revealing—her nipples often peek through her clothes. Unaware that her bra is showing, she moves about innocently, those cute little tips drawing my attention until I can't restrain myself any longer. As daily life unfolds, I can't help but wonder how my relationship with this stepmother will develop.