Cocoon Entwined manga volume 4 features story and art by Yuriko Hara.

One day, a single girl disappeared from Hoshimiya Girls’ Academy, where the uniforms are traditionally made from the students’ hair. Although she lost her love, the academy's "prince," Hana Saeki, continues on without changing. But at the same time, Youko, who confessed her feelings to Hana, undergoes a dramatic transformation…