Who is Gomo from A Step from Heaven and what is their importance?

Gomo is Apa's sister. She helps Apa, Uhmma, and Young Ju immigrate to America. She lets the family live with her and her husband until they are able to rent a home. After Apa abandons his family, Gomo gives Uhmma a job in her dry cleaning business. After Uhmma saves for years, Gomo loans her the remaining money she needs to purchase her first small home.