Cheon Myeong-kwan did not work for me

I watched Hot Blooded (2022) and Cheon Myeong-kwan was one of the parts I kept noticing. I do not hate it, but it did not pull me into the story. The role needs more detail, but the performance stays on the surface. Some emotions are too simple, and I cannot believe the character enough. For me, it does not feel very real in many scenes. I remember both the good parts and the parts that did not work so well.