The God and the Gwisin

Seokga the No-Longer-Fallen is looking for his love. Since he lost Hani nothing has felt right - and he's been desperately searching for her reincarnated form ever since. When the red thread of fate finally leads Seokga to a cruise down the river of the dead, the woman he finds isn't Hani. her name is Yoo Kisa, and she has no memory of Seokga - and no interest in regaining it either. But then the Heavenly Emperor is murdered aboard the ship, and it falls to Seokga and Kisa to solve the crime before the cruise ends. As the mystery draws them closer, they will have to decide what they truly mean to each other. The fate of their world might just depend on it.