VENU-993 Sei Maihara lives a creampie life with her stepmother, who she has always admired, while her father was away on a company trip.

Kenta suddenly has a stepmother, Hijiri, due to his father's remarriage. - It didn't take long for Kenta, a young man of his age, to become attracted to the kind and intelligent Hijiri. - One day, her father decided to be away from home for three days on a company trip. - Kenta was happy to be alone with his idol Hijiri, but he was at a loss as to how to actually interact with him.