An Zimo, who had just graduated from high school, accidentally came into contact with a holographic otome game "Yu". She booked the game with the attitude of giving it a try, but unexpectedly she became a closed beta user of the game. But she was confused as soon as she entered the game.
Why is this character such a brainless die-hard fan? The key is to be a beautiful big sister!
An Zimo had no choice but to accept the reality. Just when he was about to give up, he discovered that there was a mystery hidden in the game. The mysterious note, the heroine who doesn't attack the hero, the sudden disaster...
Purpose: Hidden mystery
