An Jin is a high school student. He was planning to enjoy his vacation after the college entrance examination, but his sister who lived with him suddenly fell ill for some unknown reason. In order to treat his sister's illness, An Jin decided to find a way to cure her sister. However, during the search, he was unfortunately affected and fell into a mysterious space, thus starting his escape journey. She met several partners during her escape. In the process of escaping with her friends, she gradually realized that things were not as simple as she thought. There seemed to be something fishy about her sister's illness.
In order to find the truth and heal her sister, she had to move on, and gradually learned that someone was brewing a larger conspiracy. This conspiracy was not only related to her life experience, but also involved her brother...
Intention: When you have a choice, don't let yourself regret it.