I found out about the game today and my first reaction when I started was "Wait a minute, this is the MC who is supposed to be 19? He looks 40." I thought it was the MC's father when I saw him. xD And Jenny looks the same age as Jane, they both look like in their mid 20's! What is going on?
To me it looks like the MC and his dad are actually brothers and the girls they move in with are sisters. Hell, I'd even change the script, but it's actually not a bad story.
I like the story, the girls and renders overall are beautiful, there are some really hot scenes, the dialogues are nice, but the age inconsistency of the characters breaks the immersion so much!