"If I had only done this then... A Truly Dangerous Smartphone Story" Miki Endo Price: ¥1100 #MikiEndo #Book #Society/Education/Learning I've only read it once, so it's still in good condition. Parents with children who have just gotten their first smartphone, how about it? For those who understand that this is a home-stored item, thank you very much (^^) I am not accepting price negotiations m(_ _)m