Su An called him gently, "Brother Xiao Huai, are you... Asleep?"
The sleeping person's face was quiet, and the sunlight shone through the branches onto the faces of the two people. His breathing was thick and dense. When Su An lowered his head, he could smell the pleasant fragrance of green grass on Brother Xiao Huai's body.
So Su An leaned against the tree trunk and fell asleep like that.
It's a beautiful summer afternoon.