Actual Experience.
This is a newly developed experience game based on VR technology that lets people "enter" a virtual or simulated world created by a program.
Memories of Hogwarts: Triwizard Tournament AE.
This is a romance game based on the Harry Potter franchise. She had completed every part of the game on PC and recorded a walkthrough. She was such a fanatic that she knew every scene and every line of dialogue by heart. So when she heard the game was being ported to the AE platform, she was thrilled. She secured a spot on release day, then went to sleep full of anticipation and fantasies.
But what awaited her was... never waking up.
She discovered that she couldn't get out.
*Notes:
1. The System is based on the Tokimeki Memorial Girl's Side series, with possibly a few minor alterations.
2. It's the familiar "I got into a game and can't get out!" setup, like Sword Art Online. The protagonist's mental state may become unstable as the playthroughs accumulate.
3. This is a sweet romance novel where readers can bet on their favorite love interest. She doesn't intend to date several people at once, but there are multiple male leads because the story has multiple playthroughs. No one is wronging anyone. It's a game, after all... though maybe it's more than just a game?
Theme: The magic is in going all in on your favorite ship.