From Tappytoon:
Tomorrow is Garam's 25th birthday and not only have her parents forgotten, but she still hasn't found a full-time job. As she lay in bed wishing for another life, the clock strikes midnight and a strange window opens up before her. She steps through and discovers that she's a pathfinder, or a traveler of worlds. But somehow stepping into this other world has caused her family and everything she knew back on earth to disappear. To rejoin her family and set things back to normal, Garam will have to learn all that she can about being a pathfinder.

Original Webtoon:
KakaoPage, Daum

Official Translation:
Japanese, S.Chinese, French