This book encourages a sense of liberation, with the theme of not needing to put on a good face for everyone. - Title: You Don't Have to Be Nice to Everyone - Author: Kim Yuwan - Publisher: Kanki Publishing - Price: 1600 yen - Language: Japanese Thank you for looking. I read this once because it was a hot topic on social media and I was interested. It's almost new. I highly recommend it to anyone who is interested! Price is negotiable!