Someone once said that there are all kinds of dirty things hidden in the deep black gutter. People just throw the garbage in without seeing it. There is nothing in the gutter. Which eye can you see? Very clean - until one day, a beam of sunlight shines into the gutter, and those ugly and dirty things are naked in front of people's eyes. People take out various things to cover the originally dark gutter, and blame the sun for being nosy. In the woods of this world, there are one percent of the birds. In the midst of their normal activities, they begin to feel strange about what should be taken for granted, but they cannot find out why. Even if they stand at the highest point and look down at all living beings, they feel that these various abnormal phenomena are very reasonable. Sherila is one of them. She is one of the people at the highest point in this huge forest. But what can she change if she is stuck in the past? In this reasonable and unreasonable world, what can she do? This is a world with extremely wide disparities in strength, and strength is everything.