Winter felt like her world had completely fallen apart when her long-distance relationship of four years was ended by her girlfriend. She could not imagine herself continuing to live her life happily again without her. Melancholic over their breakup, Winter decided to drink her heartache away alone in a bar until she completely loses control of her body. Just when midnight was about to come, she decided to go home by walking as she crossed the road obliviously while a truck was coming. The last thing that she remembered before getting hit by a truck was a woman hugging her in attempt to save her.
The next day, Winter found herself in an unfamiliar bedroom as she was in utter surprise to find herself in a different universe as Summer, who was her in that universe. Another thing was that the woman who saved her happened to be Aster, a person who has a special ability to travel across different universes. Will Winter be able to go back to her universe with Aster? Or will Winter want to stay in that universe where she is much closer to her ex-girlfriend?