After escaping a research facility, Yubin and Yoohyeon explore a world they've never known, while trying to bring back Yubin's lost memories. Along the way they meet some old and new enemies, some of whom turn into friends. Since Yubin doesn't remember her time in the facility, she also doesn't remember her feelings for Yoohyeon. Will she regain her memories? And will they be able to stay free from The Order?
5 parts