A guidebook to balance your energy and meet your ultimate "soul partner." This book has the author's signature! I read it once and then stored it at home due to lack of time. There is a slight crease on the back cover from storage, but the inside is clean. I will sell it to someone who understands this. - Title: LOVE Energy Theory - Author: Kumiko Kira - Publisher: Kodansha - Price: 1600 yen - ISBN: 978-4-353-52232-7 Thank you for looking.