Ran and the Gray World manga volume 4 features story and art by Aki Irie.

Knowing that Makoto Hibi witnessed her magical transformation, Ran is now desperate to erase his memory. But if she gets her way, she might lose a friend in the process. Later, a powerful sorceress in training named Nio Gekkoin shows up and challenges Ran to a duel! Which novice will emerge the victor in this supernatural showdown?