Just stop at chapter 12, don't read 13-15. It's better to think it ends that way, since the author wasn't alive for 13-15. You could tell by key details that were just ignored.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Seoul Station Druid