I think all DaCapo series might have relation have relation between them . As far as I know from DaCapo I and DaCapo II,
- In DaCapo II, Shirakawa Nanana is grandchild of Shirakawa Kotori from DaCapo I.
- Asakuar Junichi is grandfather of both Asakuar Otome and Asakura Yume.
Are there any similar relations in DaCapo III and the previous series?