Even a grown man cries when a friend shows him a heart-warming gesture.

On June 12, actors Ji Sung, Joo Ji Hoon and Lee Kwang Soo attended the press conference for their upcoming action film "Good Friends."

During the interview, Joo Ji Hoon shared an anecdote about how his co-star Lee Kwang Soo made him cry because of an injury that the latter sustained.

He said, "It was during filming, and I noticed something different about Kwang Soo, so I thought, 'This isn't how he normally moves.' After finishing the scene, I saw that there were glass shards scattered across the floor, and it looks painful to step on with bare feet."

The actor added, "He was squirming in pain, but he didn't say anything, so I was really moved to tears because of it."

Lee Kwang Soo shared, "I was the youngest of us three, but it didn't seem right to say anything in the middle of the scene while Ji Hoon was concentrating so hard. I didn't want to ruin it."

"Good Friends" is an action-crime film which focuses on the struggle of three friends to maintain their loyalty and trust towards each other amidst a crisis that would challenge their lifelong friendship.

The movie will premiere on July 10.