Moon Sua spent a quiet birthday after the passing of her brother, Moonbin. 

However, fellow ASTRO member Sanha cheered her up by organizing a birthday celebration for her. 

On September 9, Sanha shared photos with the caption "199999 Happy Birthday Sua," showing Moon Sua posing in front of a cake with a bright smile, cream smeared on her cheek. Sanha also prepared seaweed soup, a traditional birthday dish, touching the hearts of many.

Fans responded emotionally, praising Sanha for stepping in for Moonbin and showing care to Moon Sua. Netizens commented, "It's touching how Sanha takes care of her like an older brother," and "Wishing both ASTRO and Moon Sua happiness."

This heartwarming moment brought back memories of Moonbin and Sanha's unit work together as "Moonbin & Sanha."

Since Moonbin's passing, Moon Sua has taken two breaks from activities to focus on her health, with ASTRO members, including Sanha, supporting her during this difficult time.

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