Yomotsuki Family
The Yomotsuki Family appears in the game Fatal Frame IV. It is closely involved in the events that take place on Rogetsu Isle.
Soan Yomotsuki | ancestor (direct relation unknown) | Soetsu Yomotsuki | two generations (unnamed) | Sogen Yomotsuki | ancestor (direct relation unknown) | Soya Yomotsuki --- Sayaka Minazuki | Ruka Minazuki (GS)
- SA - Spirited Away
- GS - Getsuyuu Syndrome
- B - Blooming
Fatal Frame IV

Soan Yomotsuki (四方月 宗庵)
Soan was the first of the Yomotsuki family to craft masks for the Rite of Descent. On the strength of his work, this later became the family tradition.

Soetsu Yomotsuki (四方月 宗悦)
Soetsu was a mask-maker of the seventh generation. In his attempts to create the true Mask of the Lunar Eclipse, he caused the Rite of Descent to fail and the Day of Tranquility to take place. After the disaster, Soetsu went missing, and the circumstances of his death remained a mystery.

Sogen Yomotsuki (四方月 宗玄)
Two generations after Soetsu, Sogen revived the Yomotsuki mask-making tradition.

Soya Yomotsuki (四方月 宗也)
Soya was the head of the Yomotsuki family, and a master mask-craftsman. He worked with Shigeto Haibara to reconstruct the lost Rite of Descent, and became obsessed with the Mask of the Lunar Eclipse created by Soetsu. Because of his obsession, his relationship with his wife and daughter deteriorated. He tested masks on Ruka, causing her to develop Moonlight Syndrome, and allowed the Haibaras to use her as an Organ in the Rite of Descent, which caused her to lose all her memories. He was killed by Sakuya Haibara on the second Day of Tranquility.

Sayaka Minazuki (水無月 小夜歌)
Sayaka was a Guardian, and the last to remember the traditions associated with them. She married Soya and had a daughter, Ruka, and the family lived happily until Soya's obsession changed him. Sayaka eventually left the island, and she and Ruka went by Sayaka's maiden name, Minazuki. Her experiences weakened her, however, and she died, telling Ruka nothing about her father or the island where she had been born.

Ruka Minazuki (水無月 流歌)
Ruka is the main protagonist in Fatal Frame IV. After Sayaka took her away from the island, she remembered nothing about her childhood except fragments of a melody. Against her mother's warnings, she returned to Rogetsu Isle, hoping to learn the truth about what happened to her, and find out more about her father. She learned about the traditions of both the Yomotsuki artisans and the Guardian maidens, reconstructed the broken Mask of the Lunar Eclipse that so obsessed her father, and played the Moonsong to soothe Sakuya Haibara's spirit long enough to use the mask on her, completing the Rite of Descent and lifting the curse.

Takahisa Kozuki (上月 隆久)
Takahisa was not a member of the Yomotsuki family, but was Soya's apprentice, and lived with the family in the Yomotsuki Residence.