Graphics is something we can actually agree that yes it is Good. But, the story line can greatly depend on your liking. So, I'm assuming that you are open to all sorts of stories. Just like everyone of us (^_^).
Here are some of the games that I liked out of those that I have played. These have a good combination of Plot & Graphics.
1. Long Live the Princess
https://f95zone.to/threads/long-live-the-princess-v0-34-0-belle.5259/
Story (4/5) Graphics (4/5) + Game mechanics ------- Intriguing story with the a great mind control mechanics (not just command & win). The game is in progression, still it contains good content and the story unfolds in a great manner.
2. Depraved awakening
https://f95zone.to/threads/depraved-awakening-v1-0-phillygames.4907/
Story (4/5) Graphics (3/5) ------- Great story line and it's complete.
3. Being a Dik
https://f95zone.to/threads/being-a-dik-v0-6-1-dr-pinkcake.25332/
Story (2/5) Graphics (5/5) ------- The game is the king in terms of graphics. And, the story does give you a feel that you are watching a movie of College Student living the days of his life. But, it does jump to the F**k part (To me it seems).
4. False Hero
https://f95zone.to/threads/false-hero-v0-35-enyo-eerie.14204/
Story (3/5) Graphics (4/5) ------- Corruption is the plot as the name suggest. But, seeing the characters gradually being manipulated gives it the true novel feel (thumps up to writing). Nice graphics But, it is in progress. Packs great potential.
5. Melody
https://f95zone.to/threads/melody-v1-00-extras-mrdots-games.10668/
Story (4/5) Graphics (3/5) ------ One of the sweetest & decent one that I have played. A story that stands out due to it's plot revolving around music. It's does not contains much plot twist but yeah emotions are definitely there. And, it is complete.