Achieve Results by Implementing the PDCA Cycle! X Marketing and Operation Manual Author: Ayumi Watanabe Spreading Happiness Around the World with Ayumikan's 1-Minute Exercise Recommended by Meguko Yamanaka, author of the Shundoku series (300,000 copies)!!! The definitive guide to X operation from the author with a total of 260,000 SNS followers!! Price: 1870 yen ✱ Brand new, unused. ✱ I keep a budgie, but it has been stored in an envelope in a separate room. ✱ Will be shipped in simple packaging: poly bag + envelope.