A mean princess who lost everything to her foolish behaviour and to an epidemic gets thrown back in time to before it happened. Now she wishes to become a better person and a doctor to protect her family and kingdom.

Yusuke Yotsuya is transported to an alternative game-like world. He becomes a third player and sets out on a dangerous quest with his classmates Iu Shindo and Kusue Hakozaki, who were transported there before.