Mother Father Brother Sister is the debut studio album by Japanese singer and songwriter Misia, released on June 24, 1998, by Arista Japan.

Mother Father Brother Sister was positively reviewed by music critics, who praised Misia's vocal performance and the record's compositions.

After being entranced by Lauryn Hill on the movie Sister Act 2: Back in the Habit (1993) at sixteen, Misia received vocal lessons from an African-American voice tutor and began performing at clubs in her hometown and in Tokyo.

[1] After graduating from high school in 1997, she moved to Tokyo and applied for various auditions and sent documents to record companies in order to become a singer.

[7] "Koisuru Kisetsu" is a medium-tempo number that expresses the hope that fills the heart and the yearning love that hints at a bit of anxiety through the soft, sad strumming of an acoustic guitar.

[7] "Kiss-shite Dakishimete" is a melancholic love ballad with vocals blending with the sound of an acoustic guitar and soft harmonica tones.

[8] Misia went to Hawaii to take photos for the jackets of her second single "Hi no Ataru Basho" and first album Mother Father Brother Sister.

[9] The album artwork for Mother Father Brother Sister was photographed by Yoshie Tominaga, with Toshiyuki Shinke designing its booklet.

On March 3, 1998, her live debut was held at Harlem, a very popular nightclub at the time in Maruyamachō, Shibuya, in front of an audience of 1,200.

[21] From September to November 1998, Misia embarked on the Mother Father Brother Sister Tour ’98, performing at nearly thirty clubs and concert halls.

[26] A staff member from HMV stated that Misia's subtle emotional expression and sense of rhythm are exquisite, and her character is cute and there is nothing to complain about with the record.

[28] Mother Father Brother Sister debuted at number three on the weekly Oricon Albums Chart with 330,660 copies sold.

[36] The success of Mother Father Brother Sister is credited for helping spread R&B through the Japanese mainstream, which therefore paved the way for future prolific female R&B singers such as Hikaru Utada and Sugar Soul.