Price reduced due to disposal. For the purpose of "shukatsu" (end-of-life preparations), I am selling 20 paperback books by Seicho Matsumoto, a master writer who, despite being an Akutagawa Prize winner, questioned the literary nature of Japanese detective novels and transformed the previously closed-off motives into socially conscious ones, with free home delivery. This collection includes his representative works, such as "Point and Line" and "Zero Focus," which sparked a mystery novel boom throughout Japan, as well as masterpieces that have been made into films and dramas, offering a satisfying reading experience. Most of these books were purchased a long time ago and kept on a bookshelf, so there isn't much damage (only "Point and Line" has been read many times, and the cover has been repaired), but there are noticeable sunspots and dust stains as shown in the photos. The sunspots on the edges can be significantly cleaned by rubbing with sandpaper or a sand eraser, like at Book Off, so please try it. I wiped the covers with alcohol, but the stains did not disappear. There are no tears, and I am selling them at a low price due to the stains, for those who are okay with them as long as they can be read properly.