| Name | Level | Stat | Type |
|---|---|---|---|
| Mr. Goodman | 48 | - | Astral Adventures |
| Mr. Magoo | 70 | Max HP +40 | Enemy Kills |
| Mr. Nice Guy | 70 | ATK +8 | Hidden Quests |
| Mr. Popular | - | - | Senshi |
| Mucus | 20 | DEF +4 | Astral Adventures |
| Muggle | - | - | Farming |
| Multi-Souled | 99 | ATK +8 | Enemy Kills |
| Multicultural | 57 | CRIT +4 | Hidden Quests |
| Mum Bus | - | ATK +6 | Event |
| Mumugan Kurin | - | DEF +20 | Event |
| Mung bean | 98 | DEF +4 | Enemy Kills |
| Murderous aura | 78 | CRIT +4 | Enemy Kills |
| Murderous look | 80 | DEF +4 | Astral Adventures |
| Muscle Warrior | 80 | Max HP +40 | Character Growth |
| Muscle enthusiasts | 100 | Max HP +40 | Astral Adventures |
| Muscular | - | - | Fishing |
| Muscular | 50 | ATK +8 | Character Growth |
| Muscular Man | 83 | EVA +16 | Enemy Kills |
| Mushroom | 78 | ATK +8 | Enemy Kills |
| Mushroom | 48 | SPD +16 | Enemy Kills |
| Mushroom Head | 80 | DEF +4 | Astral Adventures |
| Mushroom-Loving | 48 | SPD +16 | Conversations |
| Music lover | 100 | Max HP +40 | Astral Adventures |
| Musician | - | - | Farming |
| Musician | 80 | Max HP +40 | Character Growth |
| Musician 2nd Place | 40 | - | Battlefield |
| Musician 3rd Place | 40 | - | Battlefield |
| Musician Champion | 40 | - | Battlefield |
| Mutant | 75 | ATK +8 | Enemy Kills |
| Mutated | 98 | ATK +8 | Enemy Kills |
| Mutated | 1 | - | Astral Adventures |
| Mutation Specialist | 3 | SPD +16 | Enemy Kills |
| Mute | 80 | ATK +8 | Character Growth |
| Mutual understanding and appreciation | 100 | - | Senshi |
| My | 85 | ATK +8 | Enemy Kills |
| My | 43 | SPD +16 | Conversations |
| My precious! | 73 | Max HP +40 | Enemy Kills |
| Myopic | 93 | Max HP +40 | Enemy Kills |
| Mysterious | 108 | Max HP +40 | Enemy Kills |
| Mysterious | - | - | Senshi |
| Mysterious | 10 | - | Enemy Kills |
| Mysterious and Fantastical | 78 | ATK +8 | Enemy Kills |
| Mystery | 18 | CRIT +4 | Enemy Kills |
| Mystery | 70 | ATK +8 | Character Growth |
| Mystic | 30 | ATK +8 | Character Growth |
| Mystic Ace | 88 | ATK +8 | Enemy Kills |
| Mystic Poet | 58 | CRIT +4 | Hidden Quests |
| Mystoge Apprentice | 50 | - | Main Quests |
| Mystoge Best Assistant | 50 | - | Main Quests |
| Mystoge Disciple | 50 | - | Main Quests |