| Term |
Age |
History |
|---|
| 1 |
12 |
Became a Dolphin Civilian (Liaison). |
| 1 |
13 |
Gregory Mahon fail a dangerous mission to rescue people in a sinking vessel or underwater city. |
| 2 |
16 |
Continued as Dolphin Civilian (Liaison). |
| 2 |
18 |
Spend an extensive period living out of water among humans. |
| 2 |
20 |
Promoted to Dolphin Civilian (Liaison) rank 1. |
| 3 |
20 |
Voluntarily left Liaison |
| 3 |
20 |
Became a Entertainer (Performer). |
| 3 |
22 |
One of Gregory Mahon's pieces of art is stolen, and the investigation brings Gregory Mahon into the criminal underworld. |
| 3 |
24 |
Promoted to Entertainer (Performer) rank 1. |