Here is the full list of all 33 Akatsuki: Lord of the Dawn achievements.
Reach level 2
Reach level 3
Reach level 4
Reach level 5
Reach level 6
Reach level 7
Reach level 8
Reach level 9
Reach level 10
Reach level 11
Reach level 12
Reach level 13
Reach level 14
Reach level 15
Reach level 16
Reach level 17
Reach level 18
Reach level 19
Reach level 20
Complete all quests on Felix Island
Complete all quests on Globe Island
Complete all quests on Leaf Island
Complete all quests on Coral Island
Complete all quests on Aqueria Island
Complete all quests on Akandia Island
Complete all quests on Spainia Island
Unlock all areas on Felix Island
Unlock all areas on Globe Island
Unlock all areas on Leaf Island
Unlock all areas on Coral Island
Unlock all areas on Aqueria Island
Unlock all areas on Akandia Island
Unlock all areas on Spainia Island