No game does slow corruption better than Hero Party Must Fall. Insight of You was also good. For those games, corruption was slow but each update from the dev was a quality update. Not to mention, in HPMF, the depth of the female MCs are much better than this one. For Insight of You, the appeal was different. Heroine had a strong personality and tried to hold on to it so the "rewriting" of her personality and dynamic was very satisfying.
Here, everyone including Lisa plays into the the textbook NTR trope. Nothing is notable about her except for the fact that she'll obviously be the stolen heroine. This game is "slow" but only because the dev likes to make sure he delivers every foreplay situation possible before doing the main thing even if in terms of plot, Kord and Lisa are in a state where they could be doing the deed already. Updates are barely notable and skippable. The only reason why I'm playing this game is because it's passable for my taste.