This is volumes 12, 13, 14, and 15 (final volume) of Satoru Hiura's manga, "Hotaru no Hikari" (Kodansha). Due to storage, volumes 13 and 15 are slightly bent. It should straighten out if placed in a bookshelf, but please be aware of this. The contents are all in good condition and can be read without issue, but they were originally purchased used, so please only purchase if you understand this. *Feel free to inquire about purchasing the set or individual volumes♪