The Three Plum Sisters, is their story true? Why is their mom in the music video?

It's true, it's very touching, now many people are looking for them, but no one can find them, I'll give you some information.... Plum Blossom Three Sisters, eldest sister Jia Yu, second sister Jia Jia, youngest sister Jia Ling. Originally from Taiwan, they're from Quanzhou, Fujian. Born in the 1980s. They sang to find their mother. Their songs have y influenced the Southern Fujian area and the provinces where Southern Fujian language is spoken, and they have grown up with us! The Plum Blossom Sisters made eight albums, the first and second were about finding their mother, the third was about Chia-ling running away from home and Chia-yu and Chia-chia searching for Chia-ling. That's why album 3 didn't feature Chia-ling at the beginning, but only her voice. Album 4 is about a father who is not dead, but whose legs are crippled and who has lost his confidence and optimism. Album 5, Chinese New Year, covers some Minnan Chinese New Year songs. Album 6, mainly covers old songs. Album 7, less Jia Ling, keep Jia Yu, Jia Jia, add a boy, and two girls, the male named Jia Jun, the female named Jia Qi and Jia Li. The content is divided into two parts, the first part is the new Plum Blossom Sisters 5 people in which they show off their dance skills, almost every song has dance moves. In the latter part, they all acted out a drama within a song, with Jia Yu playing a poor prostitute, Jia Jia playing a young student who likes Jia Yu, and Jia Jun, Jia Qi and Jia Li playing chivalrous men. As for the eighth album, there is no way to find out, almost no one has heard of it, but there are a few people who say that Jia Yu and Jia Jia wore swimsuits and danced for Jia Ling in it, but it seems that the credibility is not very high now. Album 1 Meteor Tears at the End of the World Sun God Records Released on 1980-00 Tracks:1 Meteor Tears at the End of the World 2 Galloping Lamps 3 Mother's Tears 4 Wandering to the End of the World 5 Roasted Meat Rice Dumplings 6 Wandering Wagons 7 Brave Three Sisters 8 Waiting for No One 9 Everyone to Listen to the Stories 10 Songs for My Mother 11 Mother's Tight Returns Album 2 Mom and Dad Sun God Records Released on 1980-00 Tracks:1 Mom and Dad 2 Pop Suite 3 Mother Goes 4 Sisterhood and Brotherhood 5 Demands of a Guest 6 Farewell Ticket 7 Mother 8 Dusk Ridge 9 Green Island Night 10 Father is a Boatman 11 Hometown at Dusk Album 3 Sea Breeze Walks With Me Sun God Records Released Age Unknown Tracks:1 Sea Breeze Walks With Me 2 Great Mother 3 Songs of the Troubled World 4 All for You 5 Tears of a Loving Mother 6 Duties and Taxes on the Rain Will Stop 7 Sing a Song for You 8 Birds in the Rain 9 Heartbreaking Where 10 Footsteps of Life 11 Who Doesn't Think of My Hometown 12 Wind and Sand Album 4 Tears of Autumn Chrysanthemums Released by Sun God Records Era Unknown Tracks:1 Tears of Autumn Chrysanthemums 2 Life 3 Guitar of Destiny 4 Recruitment of Dancing Partner 5 Father and Daughter 6 Call of Love 7 Elderly Man A Brother 8 Shooting Stars 9 Tonight the Rain Falls Again 10 Touring in the Night Street 11 Selling Bean Pudding Flower 12 Farewell Album 5 The Sisters of the Plum Blossom Celebrate the Chinese New Year Tracks:1 Mouse (Joyful New Year) 2 Cow (Cow Plow Song) Cow (Cow Plow Song) 3 Tiger (Lion Dance) 4 Rabbit (Happiness Rabbit Welcomes Spring) 5 Dragon (Hometown) 6 Snake (Yuan Kisses Certain Kisses) 7 Horse (Lovely Horse) 8 Sheep (Eighteen Girls) 9 Monkey (Happy Sailing) 10 Chicken (Hay Borer Getting Chicken Gong) 11 Dog (Outsider) 12 Pig (Waiting for a while) Album 6 Unknown Album 7 "Hai Hai Life" Released by Sun God Records Era Unknown Tracks:1 Hai Hai Life 2 For 100,000 Yuan 3 Wine Lady Tears 4 False Love 5 Jianghu Brothers 6 Peach Blossom Township 7 Heartbreak Hotel 8 Double Crossroads 9 I'm Waiting for You on Yue Niang Island 10 Spring, Summer, Autumn and Winter 11 Dancing Partner 12 Little Rain Album 8 Big Sister, Jia Yu, 1980 Second Sister, Jia Jia Jia, 1982 Little Sister, Jia Ling, 1987