Su Yu used to be called Su Yu instead of Su Yu.
Just like her name, she is indeed redundant. Whether it's family, school, or the whole world.
Until she was pulled into its world by the house-keeper beast in Building 184, and saw the stories of various residents from the past to the future. In one task after another, she found the meaning of life:
There are many people in the world, and they all have their own lives. At least in our own lives, we are not redundant.
—Ake and Xiaoxin live happily in their own imaginations
—Vanilla has been working hard for her dreams
—Gesanglot and Tong Qi are still climbing up until they reach the top and their nihilistic utopia collapses
And Yuan Sangguo, the doctor took some bread and said to her: "You are not redundant, you should be a fish, free and unrestrained, swimming wherever you want."
The house-killing beast changed the appearance of building No. 184, Showing her the destination of everyone, as if passing on confidence and bravery to her.
So at the age of 18, she became Su Yu, free and unrestrained.
*To the readers in front of the screen, I also wish you live your own life with ease and good luck.
Intention: May you be as free and carefree as a fish, swimming far away.