An Impracticable Theory
This volume contains 8 stories:
1. After Pleasure... (Pleasure later)
2. Sky Height
3. Kijyou no Kuuron (Cousin)
4. We'll definitely meet again... (Because it is possible to encounter it again surely)
5. Advantage
6. Heart's Scheme (Space of mind)
7. Destroyed Family (Collapse family)
8. Apparent Flash (SHISEN)
