Two worlds, twelve men, and one person linking them all together.
At this point in your life, all you (Lee Haeyeon) could care about is making it through your last year in university and earning your degree. You're convinced that this is the pinnacle moment of your life, until you meet a mysterious young man that helps you discover that your destiny is actually greater than what you believe it to be. With help from some new friends and a divine bond, you cling to the hope that together, you can preserve your world as well as theirs.
Dig through centuries of history to rediscover family, save the worlds, and possibly encounter the greatest force this world and many others have known: Love.
"You have to learn to trust us, but for now, just take my hand."