iD_eNTITY Volume 4

#4 in Yureka (iD_ᴇNTITY)

Yureka (iD_ᴇNTITY) is a 22-book series with 22 primary works first released in 2003 with contributions by Son Hee-Joon, Kim Youn-Kyung, and Sarah-Hy Kim.