Oops! Here it is:
The sky had turned dark blue. However, there was no slumber for Guile. Nobody had asked him to watch the night beforehand, but for him, it was his duty. He would not let his eyes shut, nor would he let his head bowed a bit. Pain might jolt constantly from his sore eyes and exhausted muscles, but it would never be an obstacle for him.
Looking at Serge and Kid sleeping soundly on the lush earth, he said in his mind, I shall do my best to protect you. After all, I am the oldest among the three of us.