Graduation Certificate (Artbook)

Contents: - Series Illustration (Doukyuusei, Sotsugyousei, Sora to Hara, O.B.) - Manga 'Happy Ending' ch1 and 2 - First Appearance Catalogue - Manga 'After a bird takes wing' - Afterwards **Series Order:** 1. [Doukyuusei](https://www.mangaupdates.com/series.html?id=22635) 2. [Sotsugyousei](https://www.mangaupdates.com/series.html?id=51505) 3. [Sora to Hara](https://www.mangaupdates.com/series.html?id=6183064999) (Side Story) 4. [O.B.](https://www.mangaupdates.com/series.html?id=55682774875) 5. [Doukyuusei & Sotsugyousei Fanbook](https://www.mangaupdates.com/series.html?id=11175438193) (Side Story) 6. **Graduation Certificate (Artbook)** 7. [blanc](https://www.mangaupdates.com/series.html?id=62160896451) 8. [home](https://www.mangaupdates.com/series.html?id=162677) 9. [Sajou Rihito no Chichi to Sono Buka](https://www.mangaupdates.com/series/4eew830/sajou-rihito-no-chichi-to-sono-buka) (Side Story)