Southwest. Border town.

Four days after the earthquake.

The barren city is scarred, full of fallen buildings, mottled ground, and temporary tents everywhere, which are temporary resting places for the wounded.

At this moment, beside a tent, Mo quietly wears a white nurse's clothes and masks, revealing only a pair of beautiful eyes. He is dressing a child who has just been digged out from the collapsed house and whose legs have been injured. He coaxes, "My sister will be very light, don't be afraid."

After dressing the children, a volunteer came up and saw the back of Mo's hand and said, "You've got blood on your hand. Go wash...