The third season of Arifureta Shokugyou de Sekai Saikyou. 
En route to conquer a Great Labyrinth with his allies and former classmates, Hajime Nagumo is sidetracked by a tragedy that befalls his party member Shea Haulia. After encountering a group of rabbitmen caught in an ambush, Nagumo learns that members of Shea's Haulia Tribe have been abducted by soldiers of the Hoelscher Empire. To alleviate the anxiety of Shea, whose father may be in mortal danger, Nagumo decides to head toward the empire and rescue the missing Haulias.

After arriving at his destination, Hajime is caught up in political turmoil between the empire and the Heiligh Kingdom. As princess Liliana S. B. Heiligh tries to formalize an alliance with the empire to protect her weakened kingdom against demon attacks, the Haulia Tribe plans to assassinate Emperor Gahard D. Hoelscher to free all rabbitmen from the empire's threat. Determined to protect his allies at any cost, Hajime will need to ignore all political considerations and unleash his unstoppable power on anyone who may stand in his way.
 
(Source: MAL Rewrite)

Episode 16 - The Key to the World

Episode 15 - What Makes a Hero

Episode 14 - The Overpowered Vampire Princess and the Godlike Rabbit's Grand Battle

Episode 13 - Thank God She's Still a Pervert!

Episode 12 - True Heart

Episode 11 - Charging Emotions

Episode 10 - The Final Labyrinth

Episode 9 - Changing Heart

Episode 8 - Grab Hold of Hope

Episode 7 - A Devilish Trial

Episode 6 - Haltina's Labyrinth

Episode 5 - The Hero Returns

Episode 4 - The Empire VS the Strongest Rabbits

Episode 3 - The Princess's Ordeal

Episode 2 - Roar of Revolution

Episode 1 - Haulias Assemble

Asread

OVERLAP

Hakuhodo DY Music & Pictures

FuRyu

AT-X

Sony Music Solutions

Toranoana

Bandai Namco Music Live

Bushiroad

Arifureta: From Commonplace to World's Strongest Season 3