A good start for the demo(v0.01)
Graphics: hot main character, colorful and diverse others characters, animation of scenes, unique poses, various outfits of the mc. Fantasy and trap.
Gameplay: inuitive passage, the presence of hints, freedom of grinding (if you want, you can grind, if you don't want, it won't affect anything much), you can skip most mobs altogether, teleports appear as needed to quickly move around the map (many developers make a large map and make you to wander through it, which is sad, but in this case, the developer tried his best). In the game, the mc has various characteristics that affect the possible answers.
Additionally, I will note the compatibility. I played quietly using MaldiVes. I don't think there will be any problems with Joi and PC.