We cannot make up for all the regrets, but the meaning of every farewell is to let the living live better and let the dead truly rest in peace.
Lin Mo, a fresh graduate who has just graduated and is struggling at the bottom of society, accidentally inherits a dilapidated old building and a seemingly ordinary notebook left by his mysterious grandmother. Overnight, his world is turned upside down - he discovers that he can actually see the souls of those who are trapped in the world due to strong regrets.
He became the "ferryman" between life and death, and was forced to take over his grandmother's unfinished mission: to listen to the obsessions of the deceased and help them fulfill their unfinished wishes. From the young girl who failed to send her confession letter to the aging veteran who has been waiting for his comrades for half a century, behind every soul is an unforgettable story.
However, while helping souls find their way back, Lin Mo discovered that he had inherited much more than just a "job." Grandma's death was no accident, and his ability was no accident either. A mysterious organization called "Observers" has been peeping in the darkness. They regard Lin Mo as the most precious experimental result in a huge and cold "Original Seed Project", and attempt to control the secrets of life and death.
On the one hand, there are the souls of the dead who need to be redeemed and the continuous awakening of their own abilities, and on the other hand, there are the dragnets and numerous murderous intentions laid by the huge organization. Lin Mo must move forward in the fog, uncover the truth about his grandmother's death, find the origin of his life experience, and finally make a choice: to become the "key" controlled by others, or to break the shackles and find the true "Heart Journey Home" for himself and all cursed lives.
