A mother of two children Residues were found in the suitcases. He appeared in a New Zealand court on Wednesday charged with his murder earlier this year.
The 42-year-old woman has been remanded in custody by Auckland’s Manukau District Court, CNN affiliate Radio New Zealand reported.
The court ordered that his identity and the identity of the victims be kept secret from the public.
New Zealand police launched a murder investigation in August after remains were discovered in suitcases bought by a family at an online auction in South Auckland.
Earlier, the police had said that the children were probably between the ages of 5 and 10 and may have been dead for three to four years.
According to the South Korean police, the woman was born in South Korea and is a citizen of New Zealand.
He was arrested in South Korea in September before being extradited to New Zealand on Tuesday, according to officials.