ASTRO's Cha Eun Woo has once again touched the hearts of fans worldwide with his emotional tribute to his late bandmate and best friend, Moonbin.

On Moonbin’s birthday, Eun Woo honored his memory by sharing a deeply personal letter alongside a heartfelt cover of Shin Seung Hoon’s classic ballad “For a Long Time Afterwards.”

In his letter, Eun Woo poured out his feelings, saying:

"Happy birthday, Bin-ah.
How have you been?
Lately, I’ve been missing you more than usual.
There’s so much I want to talk about over a drink, but there’s no one like you to lean on.
I’m sorry I haven’t been able to visit as often as last year.
The more I think of you, the more I hold it in and just focus on work.
That’s what you wanted, right?
But now, it’s starting to feel a bit overwhelming, haha. I don’t know.
Am I doing fine??
Your absence feels especially heavy, my friend.
I just miss you.
I love you.
Happy Moonbin Day."

Eun Woo’s sincere words struck an emotional chord with fans, many of whom took to social media to express their love and longing for Moonbin. The overwhelming response saw fans reminiscing about their favorite moments with him and celebrating his lasting impact on their lives.

Netizens were especially moved by Eun Woo’s honesty, highlighting the deep friendship the two shared and how Moonbin's presence is still sorely missed. The tribute also served as a reminder of the tight bond ASTRO members continue to hold, despite the loss.

As the fandom continues to honor Moonbin’s legacy, many have found comfort in Eun Woo’s message, cherishing the precious memories they shared with the late idol.

💜 Forever in our hearts, Moonbin. 💜