| Term |
Age |
History |
|---|
| 1 |
12 |
Became a Dolphin Military (Guardian). |
| 1 |
15 |
Moved to a new world. |
| 1 |
16 |
Promoted to Dolphin Military (Guardian) rank 1. |
| 2 |
16 |
Continued as Dolphin Military (Guardian). |
| 2 |
20 |
A brutal amphibious warfare campaign forces Robbie Lowther to spend as much time fighting out of water as in. |
| 3 |
20 |
Voluntarily left Guardian |
| 3 |
20 |
Became a Scholar (Field Researcher). |
| 3 |
21 |
Make a breakthrough in Robbie Lowther's field. |
| 4 |
24 |
Continued as Scholar (Field Researcher). |
| 4 |
27 |
Assigned to work on a secret project for a patron or organisation. |