改编自超人气漫画《自来水之污》中《记忆U盘》篇章。公元2035年,抑郁症的爆发,引发了记忆移植技术的诞生。记忆移植分知识性、体验性、情感性、人格性四个层次。最高层次的记忆移植,可以让一个人在另一个人身上重生。。A businessman mysteriously wakes up in an open-air prison cell with only an old grist mill. Forced to work as a beast of burden, he must find a way to escape before the birth of his child.。