I don't remember much, but it was one of those japanese 3dcg games made using Honey select if im not mistaken. Mc was a guy living with a woman and her daughter, i don't remember if the girls were related to the MC. It was a sandbox and the progression system was pretty generic having you interact with the women to raise relationship until a threshold to move on to the next relationship level. What i remember is that the mother and the daughter would both chill by the pool every day if im not mistaken around the same hours. I also remember it was pretty slow if you wanted to get all the scenes since moving on to a new relationship level changed the scenes as well.
