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)

When a classroom of students is transported to another world to act as its saviors, Hajime Nagumo finds himself the weakest link. As his friends and classmates are granted strong classes and impressive abilities due to their existing skills, he is given the weak title of Synergist. When a dungeon quest leaves him separated from his group, Hajime must discover his own talents or be left to rot in this world forever.
 
(Source: Seven Seas Entertainment)

The second season of Arifureta Shokugyou de Sekai Saikyou. 
 
Transported to another world and left behind by his former friends, Hajime had to make his rise from literal rock bottom. It was in the labyrinth where he strengthened his weak magic and found several beautiful allies. Now after saving his classmates, he ventures for Erisen to escort Myuu and her mother. He'll fight and defeat anyone he has to in order to find a way home—including a god! 
 
(Source: Funimation)

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