"Children Who Want to Throw Away Their Smartphones: Learning from the Wild, How to Live in an "Unknown Era"" Juichi Yamagiwa Price: ¥860 I read it once and then stored it at home. #JuichiYamagiwa #Juichi_Yamagiwa #Book #Nature/General ★If you buy two 300-yen items together, you can purchase them for 480 yen instead of 600 yen. If you wish to purchase two items, please let me know in the comments. #coco300