"Kubire Kachan's Body You Can Achieve: Detox Doesn't Stop!" Yumiko Murata Price: ¥1500 This is just the book, no ball included. You can substitute with a soft ball from a 100-yen shop, so you should be able to practice if you have the book ☝️ Detox, loosen your body, and Why not start building your body for spring? #YumikoMurata #Yumiko_Murata #Book #Lifestyle/Household #Yumicore