C450 When to Compound?

"Cough cough cough …"

Pei Yichen was caught off guard and instantly coughed up. There was mist in his eyes and it made him feel wronged.

Summer couldn't help but laugh. She reached out her hand and rubbed Pei Yichen's head like he usually did, "Be good, eat slower, don't be too anxious ~"

Pei Yichen glared at her viciously