Very interesting narrative framing with game characters playing tabletop characters and the player as the game master, I don't think I've seen this sort of setup anywhere before! Your writing makes good use of this dynamic and allows for some fun situations to occur. Music and backgrounds are well chosen for setting the atmosphere. One suggestion I'll make is to use different colors or mini portraits for the speakers to help the player remember everyone and the characters that they are controlling.
Panning between speakers with that parallax background effect is cool. The dialogue decisions are frequent and engaging, but I wish they had a bit more impact on the story, maybe with some sort of indication that someone liked or disliked your choice? I'm really enjoying the idea of bonding over a tabletop session, and there could be all sorts of different routes that appear based on how you play the combat encounters and what you say to the players.
The combat is easy to grasp and intuitive to control. I think that "player engagement" is a mechanic you could include, since the goal isn't to beat the players but to give them a good time. I couldn't win the encounter so I don't know if there are different branches, but there could be results with the everyone being bored because you took too long or made it too easy.
Really cool game idea, and I would love to see it expanded with even more story, combat, and lewd events!