A dog
The next morning mournful shouts of the old Lin family resonated in the village, they were crying so loud it felt like they were actually mourning someone's death. At once the villagers were startled, they all no matter what they were doing whether freshening up or washing their faces, jumped together. A few of the unlucky ones actually dropped the firewood that he has collected and the other one who was learning to catch the fish simply dropped the fish rod that he has made in the river, scaring away the fish at once.
All the villagers who suffered couldn't help but walk out of their house and rush to the source of this trouble, they too wanted to see just who was the one who died that his family was making such a ruckus.
But when they all reached the source of the extreme wailing what they saw wasn't a corpse but a - MONSTER!!