- Title: Rules of Kawaii (Cute) - Content: Rules for Loving Yourself - ISBN: 978-4-262-15540-1 - Price: 900 yen (excluding tax) Thank you for viewing. As shown in the photos, there are some minor scratches on the cover, etc., but overall, it is in relatively good condition. Please understand that this is a used item and only purchase if you are comfortable with this.