Billlie's Moon Sua was seen following her brother Moonbin and the ASTRO members on Instagram.

On April 21, she was seen following the Instagram accounts of Moonbin, Jinjin, Cha Eun Woo, Rocky, Sanha, and MJ. Previously, she was only following the accounts of Mystic Story and the Billlie members.

Netizens have been sending messages of condolences and support to Moon Sua via Instagram. They commented, "We hope that Sua and the members stay strong and hope the members look out for Sua," "Please support one another and stay strong," "Sua, please stay strong with the five older brothers," "Let's mourn together sufficiently," and "Please be there for her."

Meanwhile, ASTRO's Cha Eun Woo quickly returned to Korea while being overseas for his individual schedule. Additionally, Fantagio confirmed Moonbin's funeral procession and burial site would not be disclosed.