There was an initial call with a recruiter before moving on to a more case style interview. They essentially did a mock run through of their BREAD process with a second behavioral.

I only attended the first interview. The HR manager was neither friendly nor unfriendly. It was just a normal screening interview. Only self-introduction and motivation for application were conducted in English, and the rest were conducted in Korean. The HR manager asked questions focusing on my background and history rather than understanding the job itself.