Hae Na was added to the lineup of the girl group BaBa in early 2017 and made her official debut with the group on March 16, 2017 with their second digital comeback single "Funky Music". However, some months later, she left the group.
2018–2019: Blue Fox[]
Later on October 12, 2018, Hae Na re-debuted in girl group Blue Fox with their debut digital single "I Believe I Can Fly". She presumably left the group sometime in 2019.