In a dark void known as the Lightless Realm, a group of children meet and bond, but are then separated and returned to their own dimension. Years later, these children reunite to fight "Admonitions," monsters that originate from the same void, using robots known as "Vess." However, their efforts only slow the ever-encroaching and expanding Lightless Realm from infecting their world.
Their lives take a drastic turn when a new foe appears in the form of a "Corpse," whose song is rumored to kill any who hear it within nine days. The "Corpse Song" is heard by the group, and with this, they each begin to pull away and become caught up in their own personal problems—ultimately threatening the fate of humanity.
Jaakko, a mushroom entrepreneur, finds out too late that he has been fatally slow-poisoned by persons unknown. He sets out to find the culprits before he dies.
To secure his daughter’s heart surgery funds, Masamune Shinjo, urged by his wife, attempts to kidnap heiress Rin Nanase. When Rin loses memory, he pretends to be her father—only to become a murder suspect after her parents are killed. Forced to flee with the genius girl, he must unravel the truth behind the crimes.
A middle-aged detective, Kurosaki Ryuji, who can work but is not popular with women, is depicted working hard to marry while solving the mysteries and incidents that come to the office.
Tom Parfitt fakes an injury in order to escape from his monotonous lifestyle and head to a care center. However, upon his arrival, the staff experiences several strange instances, including a murder.
Muto Takashi is a former police detective who uses illegal methods to solve cases which are difficult to handle by the police. Kaburagi Wataru is a police detective and Muto's buddy, and Tamaki takes charge of the special missions given to Muto. While exploring the lives of these men, the topic of whether revenge is right or wrong is discussed in this drama.
I'm Famous and Frightened! is a Living TV reality TV show in which eight celebrities stayed for three nights in a "haunted" castle. They had to then do terrifying challenges in order to raise money for charity; each one was evicted until only the winner was left. From Series 2 onwards, a spin-off show, titled I'm Famous and Frightened Extra was introduced, presented by Brian Dowling.
While investigating an ancient painting that has been stolen, Luo Jian, who heads the criminal investigation team, crosses paths with genius university student Zhuang Wenjie who is from a family of thieves. The unlikely pair work together to crack the case.