Onshuku Kawasemi, 21 volumes by Yumie Hiraiwa, Bunshun Bunko These books have been on my bookshelf for a considerable amount of time. There are no issues with reading them, but some volumes have yellowing and wear. The books as a whole have a wavy appearance, but this does not affect readability. Non-smoking environment. Due to the long-term storage, please refrain from purchasing if you are concerned about minor details.