The second season of Tensei Shitara Slime Datta Ken. 
 
Now that the Jura Tempest Alliance is growing even further, they will now be meeting the animal kingdom of Eurazania, reuniting with King Gazel, rising tensions between monsters and humans, and Rimuru encountering the strongest enemy he’s ever faced. 
 
(Source: Funimation)

Lonely thirty-seven-year-old Satoru Mikami is stuck in a dead-end job, unhappy with his mundane life, but after dying at the hands of a robber, he awakens to a fresh start in a fantasy realm...as a slime monster! As he acclimates to his goopy new existence, his exploits with the other monsters set off a chain of events that will change his new world forever! 

(Source: Yen Press)

Living alone and never having had a girlfriend, 37-year-old Satoru Mikami is dissatisfied with how his life has turned out. But after dying at the hands of a robber, he awakens to a fresh start in a new world...as a slime monster. 
 
(Source: Yen Press)

The second cour of Tensei Shitara Slime Datta Ken 2nd Season.
 
The nation of Tempest is in a festive mood after successfully overcoming the surprise attack from the Falmuth Army and the Western Holy Church. Beyond the festivities lies a meeting between Tempest and its allies to decide the future of the Nation of Monsters. The aftermath of the Falmuth invasion, Milim Nava's suspicious behavior, and the disappearance of Demon Lord Carrion—the problems seem to keep on piling up.
 
Rimuru Tempest, now awakened as a "True Demon Lord," decides to go on the offensive against Clayman. With the fully revived "Storm Dragon" Veldora, "Ultimate Skill" Raphael, and other powerful comrades, the ruler of the Tempest is confident in taking down his enemies one by one until he can face the man pulling the strings.

As players of Monster Hunter and Dungeons & Dragons know, the slime is not exactly the king of the fantasy monsters. So when a 37-year-old Tokyo salaryman dies and wakes up in a world of dragons and magic, he's a little disappointed to find he's become a blind, boneless slime monster.
 
(Source: Kodansha USA)
 
Note: Chapter count includes 2 bonus chapters.

Rimuru has saved the children he was teaching in the Kingdom of Engrassia, and his time as a teacher is nearly over. Then Yuuki, Grandmaster of the Free Union, asks him to get to the bottom of the race for the throne in the Kingdom of Coleus, which is located between Engrassia and the Holy Empire of Lubelius. So Rimuru infiltrates Coleus under the name "Satoru," and he finds a nation at the mercy of not only a battle for succession, but a web of schemes woven by demons and vampires! 

(Source: Crunchyroll)

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