Tsukuyomi: Moon Phase volume 3 features story and art by Arima Keitaro.

When the devious Count Kinkle lures Hazuki away, Kouhei and his grandfather do everything in their power to search for her. A trail of clues leads them to a hotel, where they are confronted by a fierce monster! But suddenly, Ellefriese appears and helps them defeat the beast. The two men are thankful - and puzzled. Why would she help an "enemy"?