Set of Books
vol. 1 to 4
Item Description
| title | ハッピープロジェクト 全4巻セット |
| category | Happy Project |
| product type | Manga Complete Set, Manga, Manga Set |
| author | Ochiai Hirokazu (落合ヒロカズ) |
| publisher | Kodansha |
| product line | Magazine KC |
| release date | 2012-10-17 |
| language | Japanese |
