Just a few additional thoughts from me (see
#88 and
#102):
Outside of the scripted events, there are no pregnancy variations of scenes, both CG and sprites.
There are no non H events for the characters and the only character to even have any real event is just Shea, as I said in #88 the character writing is really bad. They have no clothing/ outfit variations, an example of where they could have had a different outfit could have been while working in the bar or during event scenes (if the dev ever adds any). There is no character development at all. Uka is just a recolor of Remina.
More poor writing can be found in the story, there basically isn't one. Was it meant to be some type of debt repayment? No such system was implemented in the gameplay. This would not be a major problem if the game focused more on the characters and your relationship with them (it doesn't). All other parts of the story are just copy and pasted from the last games.
There is no world-building elements: just more copy and paste from the last games, this game adds nothing new to the lore. Again, wouldn't be a major problem if the game was character driven (it isn't).
More copy and paste (seems to be a recurring theme with this game) can be found in the soundtrack, resulting in the same soundtrack for at least three games in a row.