Well it was not a usual game at least)
First of all, girls are nice and sexy, see many possible characters to be (like schoolgirl in the shop, or blonde Sonya-the neighbour).
Third, 3 different branches is like real rpg choice but it may become a problem (most erotic one definitely leads to big city), especially if divide more in the future
Fourth, adventurous couple cosplayers from the shop, such big introduction to them, big choice to join them or not and then the same expected result, lol) Alright it sounds real because Ada isn't ready today.
Graphics are nice, memorable characters (try to forget old granny!), special mention about music (I'd say it is big + for atmosphere and vision).