Marty Junior is Marty, son, who was the Teatan Defence Force captain and Marianne's friend.
He spent his adolescence blaming his father for abandoning his wife and son to defend the kingdom and Marianne for causing his father's death. However, after reconciling with Marianne through Marianne's heartfelt apology, Marty Junior grew to be a better person with the teaching from a skilled engineer, Marianne. Marty Junion could acquire both Marty's bravery and leadership, and Marianne's adept engineering skills.
| Name | Marty Jr |
| Released |
December 31, 2020 (Korea) January 12, 2021 (Global) |
| Age | 14 |
| Height | 129cm |
| Weight | 29kg |
| Species | Teatan |
| Element |  Earth |
| Role |  Ranged |
| Equipment |
 Rifle Accessory |
Story
Evolution
| Obtainable at 1 | |||||
|---|---|---|---|---|---|
  |   |   |   |   | |
Max Awakened Stats Lv.86
Rank: 116/138
ATK 778
Rank: 124/138
HP 35268
Rank: 125/138
DEF 137
Rank: 67/138
Crit Chance 0
Rank: 42/138
Damage Reduction 0
Rank: 14/138
Heal 0
Fire Resistance -30% 
Water Resistance +30% Abilities
 Normal Attack | Missile Shooter Fires a missile that penetrates enemies. | |
|---|---|---|
 Chain Ability | Trigger N/A | Result N/A |
| N/A | ||
 Special Ability | N/A | |
| Passives | [Party] Earth Atk +10.0% | |
| Name | Marty Jr |
| Released |
December 31, 2020 (Korea) January 12, 2021 (Global) |
| Age | 14 |
| Height | 129cm |
| Weight | 29kg |
| Species | Teatan |
| Element | Earth |
| Role | Ranged |
| Equipment |
Rifle Accessory |
