9 parts Ongoing After the tragic death of her twin sister, Rena is left to grapple with the profound grief and sense of loss. However, Rena begins to experience uncanny, supernatural occurrences all around her - unexplained noises, objects moving on their own, and even fleeting glimpses of her sister's ethereal form. Rena soon finds that Ren's presence has not completely departed from the world of the living.
Caught between the realms of the living and the dead, Rena must navigate the supernatural forces that now permeate her life. She is faced with the daunting task of understanding the true nature of Ren's promise and finding a way to confront the otherworldly powers that threaten to consume her.
Through this supernatural saga, the story explores the unbreakable bond between the two sisters, as well as the consequences that arise when that bond transcends the boundaries of life and death. Rena must reconcile her grief, her fear, and her desire to reconnect with Ren, all while unraveling the mysteries that swirl around her - mysteries that hold the key to her very survival.
