Ryu Hye-rin never quite convinces

Looking just at Ryu Hye-rin's work as Nurse, there is a clear point of view in the performance. It is not a careless performance, but it feels under-shaped. Several choices feel too broad for what the scene seems to require. The performance is functional, but it does not leave much after the scene ends. I wanted more specificity, especially in the emotional transitions. Different viewers may value it more, but for me the effect was limited.