To put it simply, the meeting was mutually beneficial.
Both Ha-eun and Hong Su-eun gained something from each other.

However, what they gained wasn’t of the same type, let alone the same kind.

First, what Ha-eun gained: a deeper understanding of her character, Kim Jeong-hyun.
And—

“I’d like to meet with you again if the opportunity arises.”

—her expressed interest in appearing in Gods and Goblins.

Ha-eun’s statement, aimed at opportunities following her current project The Sunshine, caught Hong Su-eun slightly off guard.
After all, Gods and Goblins was still an unfinished drama without a completed script.