Season 1
A proud knight, slain in battle, finds himself alive once more-reincarnated in the body of a fearsome behemoth. As if he wasn't confused enough by this turn of events, apparently behemoth cubs look exactly like adorable kittens?! Even if the rest of the world sees him as soft and cuddly, he has the honor of a noble warrior and the strength of an unstoppable S-ranked monster, both of which will be put to the test as he fights to protect the beautiful elf who has taken him as her pet!
01. The Elf Girl and the Knight's Vow
A knight dies and is reincarnated into a baby Behemoth, an S-rank monster that looks just like a cat! A novice D-rank adventurer, Aria, adopts him as her kitty cat!
02. The Tigris-ear Blacksmith & A Brand New Skill
Aria and Tama visit the armor shop of their familiar blacksmith, Vulcan, to have Tama's armor tailored.
03. Urgent Quest - Defeat the Demons!
Disappearances plague the neighboring town of Lenard and the demon, Beryl, is behind it all. Aria accepts a quest to save the people in trouble.
04. Awaken - Behemoth!
Tama takes on the earth dragon, his fated enemy, in order to save Aria from the brink of death. Tama turns into a real behemoth!
05. Elf Girl & Dragon Girl
Stella continues making passes at Tama with her telepathic skills. Meanwhile, Tama feels uneasy as he watches her fight, driven by her old earth dragon instincts.
06. Girls of the Wandering Woods
The group is caught up in a new forest labyrinth. Tama and Aria are excited to explore an untouched earth said to be full of rare materials and rarer treasure chest.
07. Undead on Approach - Dark Tales of the Earl
Aria and friends desperately search for Lily and Feri. According to Vulcan, the Earl of Gladstone is rumored to be kidnapping young, beautiful women.
08. The Elf Girl Makes a Move
Lily and Feri join Aria's party. Aria is rewarded with a promotion to A-Rank Adventurer! Meanwhile, Tama unlocks the ability to evolve into his third behemoth form.
09. Fated Reunion in the Imperial City!
By invitation of the emperor, Aria and company travel to the imperial city of Klareal. There they meet legendary hero Prince Julius and the Holy Demoness Belzebuth.
10. The Powers of Tama and Aria
With news that one of the Demonic Four has returned to the labyrinth in Ruine, Aria's party, Julius, and Cedric's knights make way for its deepest depths.
11. The Philosopher's Stone and the Secret of Lumines
After escaping to the demon world, Vasaago's next stop is Aria's birthplace: Lumines. His target? The Philosopher's Stone.
12. Sacred Blade & Beast
The battle against Vasaago for the fate of the world has begun. Tama evolves into his third behemoth form and takes to the skies with Aria to retaliate!