Ivon Yusmaniar was born on August 26, 1989, in Kediri, Indonesia. She is 163 cm tall, weighs 50 kg, and completed her high school education. Ivon is single, has no children, and practices Islam. She has two siblings and resides in Muneng Village, Muneng Wetan, Purwoasri District, Kediri Regency, East Java. Her nearest airport is Juanda (Surabaya), and she has no known allergies.

Ivon has extensive domestic work experience in Indonesia and Singapore. From 2019 to 2021, she worked in Jakarta for a Chinese family, assisting with cooking and cleaning in a flat and caring for Ahma, aged 70. From 2021 to 2023, she worked for an Indian family in Singapore, taking care of a 14-year-old child, cooking, cleaning a 3-bedroom condo, marketing, and washing the car. In 2023, she briefly worked for a Chinese family in a 3-story house, caring for two children aged 11 and 13, cooking, cleaning, and gardening. She also worked for another Chinese family in an HDB flat for 3 months, taking care of two children aged 3 and 6, performing cooking, cleaning, laundry, and marketing duties. From 2023 to 2025, she worked for a Chinese family, assisting Ahma while she was still healthy, and performing cooking, cleaning, and laundry duties.