Y/N, an immortal woman who has lived for over a century, carries the heavy burden of watching everyone she loves die. Haunted by her past and seeing her immortality as a curse, she distances herself from others-until she meets Dazai Osamu. Their unexpected connection grows into a complicated romance, but with Y/N's secrets, including her past crimes and ties to Fyodor, trust becomes a fragile thing between them. As enemies close in, including the deadly Hunting Dogs and the manipulative Fyodor, Y/N must decide whether to hide or face the world with Dazai by her side. The deeper they fall for each other, the more dangerous their relationship becomes, with betrayals, battles, and emotional barriers threatening to tear them apart. When Y/N eventually makes a risky deal with Fyodor, keeping it hidden from Dazai, their bond shatters, pushing her to the brink. An overdose, a coma, and a desperate rescue attempt leave both of them questioning whether love can truly survive in a world as dark as theirs. Now, with their future hanging in the balance, Dazai has one final question: Can Y/N ever escape the curse of immortality, or will their love be doomed to end in tragedy?
50 parts