Ran and the Gray World, Vol. 4

Knowing that Makoto Hibi has 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? -- VIZ Media