Apart from her group's activities, Son has also starred in various television series such as The Great Seer (2012), My Kids Give Me a Headache (2012–2013), Second 20s (2015), Cinderella with Four Knights (2016), The Most Beautiful Goodbye (2017), Dinner Mate (2020), Ghost Doctor (2022), Agency (2023) and Romance in the House (2024).

Her mother is an art museum director while her younger sister, named Son Sae-eun, pursues a career in the sports industry as a professional golf player in South Korea.

[8] Originally dreaming to become a painter, Son coincidentally stumbled upon auditions for South Korean record label JYP Entertainment.

[9] In the midst of training, 16-year-old Son appeared in the music videos "Breath" and "Beautiful" by Beast as its female lead.

[12] The group released their debut EP Seven Springs of Apink on April 19 alongside a music video for its lead single "I Don't Know" (몰라요).

[15] She then made her film debut in the fifth installment of comedy series Marrying the Mafia, titled "Return of the Noble Family".

[33][34] On April 8, 2022, it was reported that Son would be withdrawing from the group Apink due to difficulty balancing work as both an actress and idol.

[36] Son revealed the moment she was certain she wished to pursue a career in the South Korean music industry was because of veteran singer BoA.

According to her agency, Plan A Entertainment, she once visited the facility during her days in middle school and made up her mind that she would return again in the future.

[43] On February 28, 2020, Son made a donation of 50 million won to the Daegu Community Chest of Korea to help support those affected by the COVID-19 pandemic.