Custom Child

, is a Japanese light novel series written by Yukako Kabei, with illustrations by Jiro Suzuki. The series began publication on April 10, 2005 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
"Ah ... maybe I was out of touch for a while?" "One week. You think you're dead. ”Is that so much? No wonder June is over. -Mishima was awakened by a friend's phone and headed to the bathroom while lying asleep. Suddenly, when I was about to look back at the doorway, the whole body froze to the touch of the knife on my neck. "Don't move. If you move, it will cut." Madoka, a girl who suddenly appeared in front of Mishima. Mishima's summer began in this way.