I sure hope Yuuki gets more outfits, but that's probably just wishful thinking. Like I mean instead of that boring swimsuit they made for her, should of been some bikini's and variety of other outfits. Hgames should all have the core abilities.
1st: Great artwork
2nd: A plethora of outfits of variety as well.
3rd: Tons of different Situations with the top genres gangbang etc.. Like Dancer/Teacher/Gym teacher/step mom/aunt/time travel in the past to bang the old lady that is now young again lol jk or am I... well you get what I mean. And with all outfits to go with situations that can be worn anytime in game, that also effect the artwork of different jobs or situations.
4th Storyline
5th end result Fapworthy material that is also worth playing.
These can really be in any order as long as great artwork comes first, and all of them have to be in the game for it to be the best.