With two female high school students as the main characters, the work tells the good, evil and sadness of several ordinary families in the 1990s from the perspective of victims and witnesses.<br />Dad used me as an exchange of interest, the bargaining chip was my disappearance, mom cried, and eventually fell silent. Anyway, there was nothing between us except blood relations. They were a happy family anyway, as long as they had a brother. I don&#39;t feel angry, I just plan to live like a maggot and be ordinary.<br />......<br />At this moment, as I sit in the sewer and write this, I always have a strange feeling inside. It seems that I was, am, and will always belong here. Some kind of tie in me - to the world above my head - has been completely severed. The minus sign that had always appeared in my life had finally come to an end and drawn an equal sign.<br />After the equal sign, I saw the &quot;zero&quot;.