Sequel to Doukyuusei and Sotsugyousei, continues the relationship between two boys, Kusakabe Hikaru and Sajou Rihito, right after high school and into college. Series Order: 1. Doukyuusei 2. Sotsugyousei 3. Sora to Hara (Side Story) 4. O.B. 5. Doukyuusei & Sotsugyousei Fanbook (Side Story) 6. Graduation Certificate (Artbook) 7. blanc 8. home 9. Sajou Rihito no Chichi to Sono Buka (Side Story)