Solar asked Eric Nam to help her out with a package to send her sister, who's studying abroad in England. She then introduced him to her sister over the phone, but her sister seemed hesitant to have a conversation in English. When Eric Nam explained that they sent over a package, her sister simply said, "Thank you," and "I don't have anything to say."
When Solar asked why she wasn't speaking in English, her sister responded, "He speaks English too well." Solar's unni also expressed it was a shame Eric Nam couldn't show up to MAMAMOO's concert due to filming for 'Law of the Jungle'.
He then said, "I'm trying to make up for it in other ways."