The producers of the popular Chinese animated series Xin Ling Zhi Chuang (Spirit's Window) have been accused of copying several backgrounds from 5 Centimeters per Second with minor modification.
Serial animasi China yang berjudul Xin Ling Zhi Chuang ("Jendela Jiwa") dituduh telah memplagiat beberapa latar dari 5 Centimeters Per Second dengan sedikit saja perubahan.