On April 19, 2025, Moon Sua shared a heartfelt letter to honor the second anniversary of her brother Moonbin’s passing. In the letter, she revealed, “I sang a song for the first time while thinking of you. Touched? It might not be perfect, but I truly hope you can feel how sincere I am.” The message referenced a tribute song released in collaboration with fellow artists in memory of Moonbin.
Moon Sua, a member of the K-pop group Billlie, took to social media to express her emotions on this poignant day. She opened up about her personal journey since his passing, writing, “I’ve been doing my best to live well. There are days I’m just getting by, days I can smile, and days that feel completely overwhelming—but the harder it gets, the more I try to stay strong.” Moonbin passed away on April 19, 2023, a loss that deeply affected not only his family but also fans around the world.
At 6 p.m. KST on the same day, a tribute song featuring Moon Sua, members of ASTRO, and 22 fellow artists was set to be released in his memory. This special project, titled “Memory of the Moon,” aims to honor Moonbin’s legacy while uniting various artists in a heartfelt tribute.
In her emotional letter, Moon Sua began with a touching greeting, addressing her brother with, “Oppa, are you doing well?” She reflected on their bond and the grief she has faced since his passing. “This time, I sang a song for you for the first time. How is it—kind of touching, right?” she wrote, acknowledging the nervousness that came with performing for him. The song she chose to cover, “Always Remember Us This Way,” originally sung by Lady Gaga, resonated deeply with her memories of Moonbin.
“I thought a lot about what song to choose, and in the end, this one felt right. ‘I’ll always remember us just the way we are.’ That line just felt like us,” she shared, illustrating the profound connection she still feels with her brother. Moon Sua also reflected on the challenges of life without him, admitting, “Some days, I barely make it through, other days I laugh, and sometimes everything just feels too much.”
Despite the pain, she emphasized her determination to keep going, stating, “But the tougher it gets, the harder I try to stay strong. If you could see me now, I think you’d tell me, ‘You did well.’” Moon Sua’s words reveal a mixture of sorrow and resilience, as she navigates her life in the shadow of her brother’s absence.
In her letter, she also mentioned the dreams she has of Moonbin, which bring her comfort. “Maybe because the day is getting closer, but I’ve been seeing you in my dreams now and then. Not often, but still—it made me so happy to see you,” she wrote, capturing the bittersweet nature of her memories.
As part of the tribute, Moon Sua is collaborating with ASTRO and other artists to create a special single. “Memory of the Moon” will not only honor Moonbin's legacy but also support a meaningful cause, with all proceeds from the song being donated. This initiative highlights the impact Moonbin had on his peers and the music community as a whole.
Moon Sua’s heartfelt tribute encapsulates the love and bond shared between siblings, even in the face of tragedy. “Let’s be forever, Moon siblings. If I could be born again, I’d still want to be your sister. I truly miss you and love you,” she concluded, a poignant reminder of the enduring connection they share.
The release of the tribute song, featuring contributions from 22 artists, including ASTRO’s MJ, JinJin, Cha Eun Woo, and Yoon Sanha, marks a significant moment for fans and fellow artists alike. It serves as a collective remembrance of Moonbin, whose talent and spirit continue to resonate within the K-pop community.
Since the passing of her brother in April 2023, Moon Sua has shown quiet strength in her return to the spotlight. After taking time to grieve, she resumed activities with her group Billlie, receiving overwhelming support from fans. Though still healing, Moon Sua continues to honor Moonbin’s memory through her music and resilience.
As fans and fellow artists come together to celebrate Moonbin’s life, Moon Sua’s tribute stands out as a testament to the power of love, memory, and the enduring bonds of family. The emotional weight of her words and the collaborative spirit of the tribute song remind us all of the importance of cherishing our loved ones and keeping their memories alive.
In a world where loss is often met with silence, Moon Sua’s heartfelt expression of grief and love offers a glimpse into the complexities of mourning. Her journey serves as a reminder that while the pain of loss may never fully fade, the love shared can create a lasting legacy that inspires and uplifts.
