※ Please read the profile before purchasing. Investor Z complete set. Volumes 1-11 purchased from Book Off. Volumes 12-21 purchased new. I started studying with this manga when I was a beginner in investing. It was interesting to learn about the wide world of various investments. I enjoyed reading the manga without getting bored. The condition is good, but please note that this is based on my personal assessment and home storage, so please be careful if you are looking for perfection.