Riff

Riifael Rafft, also known as Riff, is a character from The Cain Saga.

Appearance
Riff is 28 years old with light gray hair and blue-gray eyes. As compared to the other characters, he is tall, well-built and a very handsome young man.

Throughout the series, he is mainly seen in a black suit which appears to be his butler uniform.

Story
Riff is Cain Hargreaves's valet and he used to study medicine before he was taken in by Alexis Hargreaves. It was revealed later that Riff's whole family died in a fire and he was the only survivor. After that, he lost some parts of his memory, and he often tried to kill himself, finding that he had no reason to live as all his future dreams have collapsed.

Riff dresses Cain and ties his shoes for him, which Yuki considers "a form of communication between the two of them because they've been together so long that they're almost like father and child." During that time, they have discussions "unrelated to work." She wrote that "Riff is almost like Cain's mother" recently, commenting that Cain behaves somewhat childishly when with him; she explained that "the scent of Riff's crisp white shirt" brings him nostalgia for the time when he "used to cry on Riff."

Riff is very concerned about Cain's well being and will not hesitate to put himself in harm's way in order to protect Cain. He is also very close with Cain, and often he would help Cain in his investigations.

Secretly a high-ranking member of Delilah, he is placed with Cain so that Cain would form a close bond with him and be further hurt when Riff reveals the deception. Riff had murdered his own family and died in the ensuing fire he intentionally set. Resurrected by Delilah and given an alternate, kinder personality, he is the longest surviving of all the dolls, occasionally brought to the organization's hideout and given blood transfusions to keep him alive. When Riff's true personality emerged, he was called by his full name, Riffael.

Near the end of the series, Riff's will to rebel against Delilah grew stronger as the hypnosis faded, which allows him to kill his original, cruel personality. However, at the time his body had begun decomposing. Through Jezabel's help, he gained a few more hours to live, during which Riff was reunited with Cain. During their reunion, the building they were in started collapsing, and Riff tried to get Cain out of the way but Cain chose to stay with Riff and they died together in an embrace.

Count Cain Series
Forgotten Juliet Arc

Riff was first seen together with Cain while digging Suzette's grave. Later, he was seen again in the carriage while picking Suzette up with Cain.

Bibi the Branded Arc

Riff was asked by Cain to investigate the lives of the Russel family, finding the past misfortunes which happened to their daughter, Madeline.

He was later seen treating Cain's wounds when the latter got back to the house, while listening to Cain's confession that he had killed Madeline.

Cain Hargreaves
When Riff first met the twelve-year-old Cain, he felt that the child needed him, and decided that Cain will become his new reason to live. After this, Riff appeared to stop trying to kill himself, but the scar on his right wrist remains. Cain notices the scar, however he never inquired about it for fear of hurting Riff.

Riff was the only person allowed to see Cain's scarred back, and hence he is also Cain's valet, taking care of all Cain's needs. Riff was fiercely loyal to Cain, believing that if he did not have Cain, it would be the same to him as being dead. He also told Cain that he will always accompany Cain, even to hell.

This is severely changed when his other personality 'Riffael' awakened. Riffael enjoyed hurting Cain and told him that Cain can go to hell alone, causing Cain a lot of pain and grieve. Cain then swore on himself that if he cannot have Riff back, then he shall be the one to kill Riff.

Mary Weather
Mary Weather and Riff shared a loving and pleasant bond. Riff often brought home and/or cooked food that Mary Weather likes, including scones and cakes. Mary Weather trusts Riff a lot, just like her brother. She also said that her brother, Cain, is very lucky to have a friend as loyal as Riff.

Facts

 * He is the first person Cain trusts, and is arguably the closest with Cain.
 * He once had a brother named Clyde and a fiance named Lucinda.
 * He used to study medicine and worked at a hospital owned by his fiance's father.
 * His true and crueler personality is called Riffael. Although Riff was noted as very strong by the other characters, Riffael was even more so. This turned out to be his otherworldly power, awakened because he was a deadly doll.
 * Riff used to be an assistant coach of boxing for children in his studying days.
 * Riff has always been able to find Cain wherever Cain went, however Riffael was not able to do so and instead depended on a tracking stone.
 * In the last panel of the manga, Riff was shown to have turned back into a corpse while still embracing Cain. His head was slumped on Cain's shoulder, possibly a reversal of their roles while they were alive (Riff acting somewhat like an emotional crutch for the mentally unstable Cain).
 * Riff can use both hands equally well. However, Riff seemed to prefer his left, which became evident during the end when Riff rebelled against Riffael by using his left hand to shot his right.