| Term |
Age |
History |
|---|
| 1 |
12 |
Entered Military Academy(Dolphin Military Academy) |
| 1 |
13 |
Study Engineer (Power) as a hobby. |
| 1 |
16 |
Graduated. |
| 2 |
16 |
Became a Dolphin Military (Underwater Commando) with the new title Private. |
| 2 |
20 |
Receive special training in underwater mine disposal. |
| 2 |
20 |
Promoted to Dolphin Military (Underwater Commando) rank 1 with the new title Lance Corporal. |
| 3 |
20 |
Voluntarily left Underwater Commando |
| 3 |
20 |
Failed to qualify for Law Enforcement (Agent). |
| 3 |
20 |
Became a Dolphin Civilian (Nomad). |
| 3 |
22 |
Jill Stone fail a dangerous mission to rescue people in a sinking vessel or underwater city. |
| 4 |
24 |
Continued as Dolphin Civilian (Nomad). |
| 4 |
25 |
Jill Stone have a chance to travel offworld on business and spend a long time in space. |
| 5 |
28 |
Continued as Dolphin Civilian (Nomad). |
| 5 |
31 |
Spend an extensive period living out of water among humans. |