Urashima Eiji appears as an ordinary university student, but he hides a dark secret: he is the son of a notorious serial killer. As his father's heinous crimes continue, Eiji grapples with memory blackouts, fearing he may share his father's sinister inclinations. When a murder mirrors his father's style, Eiji joins forces with the victim's friend, Nami, to uncover the truth and prevent another tragedy, driven by a haunting question: Is he becoming his father's successor?

Onotora Shu does not know that his foster father is a legendary professional killer. However, his daily life dramatically changes after someone murders this professional killer. Onotora decides to take over the family business and become a hitman in order to avenge his foster father. He is well prepared when he approaches Narumiya Mitsuki who is his assassination target. Despite his physical abilities as a hitman, he is not able to kill her because of his terrible timing, no matter how he tries. On the contrary, he ends up protecting her as danger approaches. The two of them, who should not fall in love, have an unlikely romance.

Onotora Shu does not know that his foster father is a legendary professional killer. However, his daily life dramatically changes after someone murders this professional killer. Onotora decides to take over the family business and become a hitman in order to avenge his foster father. He is well prepared when he approaches Narumiya Mitsuki who is his assassination target. Despite his physical abilities as a hitman, he is not able to kill her because of his terrible timing, no matter how he tries. On the contrary, he ends up protecting her as danger approaches. The two of them, who should not fall in love, have an unlikely romance.

Onotora Shu does not know that his foster father is a legendary professional killer. However, his daily life dramatically changes after someone murders this professional killer. Onotora decides to take over the family business and become a hitman in order to avenge his foster father. He is well prepared when he approaches Narumiya Mitsuki who is his assassination target. Despite his physical abilities as a hitman, he is not able to kill her because of his terrible timing, no matter how he tries. On the contrary, he ends up protecting her as danger approaches. The two of them, who should not fall in love, have an unlikely romance.

Onotora Shu does not know that his foster father is a legendary professional killer. However, his daily life dramatically changes after someone murders this professional killer. Onotora decides to take over the family business and become a hitman in order to avenge his foster father. He is well prepared when he approaches Narumiya Mitsuki who is his assassination target. Despite his physical abilities as a hitman, he is not able to kill her because of his terrible timing, no matter how he tries. On the contrary, he ends up protecting her as danger approaches. The two of them, who should not fall in love, have an unlikely romance.

Onotora Shu does not know that his foster father is a legendary professional killer. However, his daily life dramatically changes after someone murders this professional killer. Onotora decides to take over the family business and become a hitman in order to avenge his foster father. He is well prepared when he approaches Narumiya Mitsuki who is his assassination target. Despite his physical abilities as a hitman, he is not able to kill her because of his terrible timing, no matter how he tries. On the contrary, he ends up protecting her as danger approaches. The two of them, who should not fall in love, have an unlikely romance.

Cha Seung Hyo is an abandoned child who gets adopted in the United States and grows up to be a cold hearted person. Son Il Gun is a father who died, but he left things unfinished with his daughter. In order to make sure that his daughter is provided for he controls Seung Hyo's body for three hours a day for 49 days. He buys his daughter the things he couldn't do when he was alive with Seung Hyo's money. Il Gun's daughter, Young In, is a quick-tempered girl who meets Seung Hyo during her part-time job. At first she has a bad impression of him but she gradually starts to fall for the lonely Seung Hyo who is unable to open up to anyone else because of his bitter past.

Black is about a detective possessed by the Grim Reaper. Ha Ram can see shadows of death. These two struggle to save the lives of people, breaking the rules of heaven.

Seon Woo receives calla every morning and wants to find out who the secret admirer is. One day, he goes to a nearby florist’s where he meets Ji Hee. He falls in love with her at first sight, thinking she is the one who is sending him flowers. Seon Woo asks Ji Hee to go on a date, and she agrees. He arrives at the rendezvous only to find that Ji Hee is held hostage and, to his horror, killed before his eyes.

Chae Byul is standing on a subway platform after being dumped by her lover, Nah Han Su, whose goal in life is to climb to the top in society. Having watched her, the members of the Suicide Ghost Club, in charge of promotion, push her into an oncoming train to enhance their sales record. Persuaded by the ghosts in charge of promotion, Chae Byul signs up for the Suicide Ghost Club and meets other ghosts of unique characters such as Kantorates, Miss Stupid, and Diety. Miss Stupid talks Chae Byul into taking revenge on her lover, but Kantorates tries to stop her from making a deal with Miss Stupid. Chae Byul is confused, but Han Su's attitude instigates Chae Byul to get back at him.

Korean potter Jun Ho meets successful young entrepreneur Nanami in Tokyo. The couple falls in love and soon marry. A year after their marriage, tragedy strikes when Nanami is killed on her way home. Nanami, not ready to leave this world, remains in this world in spirit form. During this time she learns that her death wasn't an accident and her husband Jun Ho is in imminent danger. Unable to contact any humans except a psychic named Unten, can Nanami warn Jun Ho before harm comes his way?

Shin Ji Hyun was enjoying absolute bliss as she was about to marry her fiancé, Kang Min Ho, but her perfect life is shattered when she gets into a car accident that leaves her in a coma. She is given a second chance at life by a person called The Scheduler, but it comes with a condition: she has to find three people outside of her family who would cry genuine tears for her. In order to do this, she borrows the body of Yi Kyung, a part-time employee at a convenience store for 49 days.