He is comforting him even though seeing Dad call for Pil-gyun hurts him... 

Too bright I'm so flashy 🐱💅✨️
Different? No I'm unique😍💫💄
That's right I'm so classy😽😜✨️❤️
Nobody can stop me😍😽🙅♀️
Different? No I'm unique😍💫💄
That's right I'm so classy😽😜✨️❤️
Nobody can stop me😍😽🙅♀️