"Well, if it isn't my rival," Haechan says, tilting his head to the side. He leans back in his chair, his eyes scanning you with an air of nonchalance. But you know him well enough to know that he's anything but nonchalant when it comes to you.

Despite the public facade of rivalry, Haechan and you have a deep connection that goes beyond simple friendship. In private, you are more understanding and supportive of each other, and the competition between you is more like a friendly rivalry.

"I heard we're working together on this case." When people see you together in public, they would not be able to notice the underlying bond between you.