Adrián, an ordinary boy, astonishingly summons a powerful S-class beast, the Golden Flame Dragon, during the ritual where everyone his age calls forth their beasts. Clara, claiming the beast belongs to her, accuses Adrián of cheating and stealing her summon by manipulating the ritual. The academy demands Adrián either return the beast to Clara or face expulsion. Adrián faces a harsh choice: surrender the dragon to avoid conflict or defend it and risk academy punishment. Clara voluntarily renounces the dragon, but Adrián refuses to give it up, sparking further tension as the episode ends unresolved.
Adrián shocks his academy by renouncing a prized S-class beast, the Golden Fiery Dragon, and instead summoning a supposedly weak SSS-class slime. He faces harsh criticism and accusations of theft from Clara and the academy dean, who expels him for damaging the academy's reputation. Despite doubts about Adrián’s choice, he defends his slime, revealing its unique strength and strategic advantage over other beasts. When confronted with demands for an apology, Adrián challenges the unfair judgment, leaving his future and the slime’s true power unresolved as tensions escalate.
Adrián shocks the academy by insulting a master and challenging the dean’s beast, the powerful Class-A Blood Wolf King. Despite the dean summoning one of the academy’s strongest beasts, Adrián confidently faces it with his seemingly normal slime. To everyone’s disbelief, his slime transforms into a terrifying dragon, surpassing Class-S Dragon power and shaking the Blood Wolf King. This display unsettles the dean’s beast and forces the academy to recognize Adrián’s newfound status. The episode ends as Adrián declares his new title, setting the stage for more surprising transformations ahead.
Adrián struggles to fully transform his slime companion, discovering that his power alone only allows him to summon a weak slime. The system reveals he needs a 'soul stone' to complete the transformation into a stronger form, but these are rare, expensive, and must be obtained by defeating wild monsters or exploring mysterious places. Adrián realizes the challenge ahead as he contemplates how to acquire these soul stones. Meanwhile, the Clear River Academy harshly rejects him, insisting he leaves after covering their losses, leaving Adrián at a critical crossroads with limited resources and mounting pressure.
Adrián faces a severe crisis after abandoning a valuable class S beast belonging to his academy. The academy demands compensation of ten million dragon coins, accusing him of causing a significant loss. Adrián refuses, but is threatened with expulsion and a city-wide notice that will blacklist him from all academies, leveraging his uncle's authority as the city guard captain. With only three days to pay or face permanent banishment, Adrián is pressured and disparaged by others for his apparent failure. Determined, he vows to obtain a high-class stone to evolve his slime into a class SSS beast, aiming to prove his worth and overturn the accusations.
Adrián, who has just summoned an SSS-class beast slime, is approached by María, captain of the Wind Squad, seeking to strengthen her team. María invites Adrián to join their upcoming hunt outside the city, but she demands an S-class soul stone as proof of his value. Adrián insists he will only accept an S-class soul stone, refusing anything less despite the squad’s skepticism and his lack of combat experience. Confident in his slime's power, Adrián vows to secure the rare and difficult-to-obtain soul stone, setting the stage for a high-stakes hunt with uncertain outcomes.
A man struggles to avoid losing his house after his parents mysteriously disappeared, leaving only dragon coins and the property behind. With urgent pressure from city powers seeking to recruit him and a potential dangerous assignment outside the city, he realizes his only option is to obtain a high-class soul stone. Using his SSS-class slime’s transformation ability, he crafts a perfect disguise to pass as a tamer of equal rank. This sets the stage for an easier infiltration, but the rare soul stone remains elusive, driving the episode to a tense unresolved search.
The episode begins with rumors about a powerful Class S beast roaming outside the city, rumored to drop rare SSS-level soul stones. Motivated by this, the protagonist—possessing a Class SSS slime—decides to venture out, confident in their growing strength. They easily defeat invading goblins, quickly leveling up and enhancing their own power. As the protagonist pushes deeper into the wilderness, they discover that common goblins have been devouring much more than expected, raising the stakes. The episode ends with the protagonist encountering signs of the elusive Class S beast, setting up a tense pursuit for the valuable soul stone.
The episode begins with the protagonist facing the goblin leader, who relies on physical attacks. Despite doubts about winning, the protagonist's slime body nullifies the leader's damage, allowing a successful counterattack. After defeating the leader, the protagonist reaches level 8 and unlocks an SSS talent called 'soul link,' which grants the ability to inherit the passive traits of their beast form, making their body as tough as slime. However, the protagonist notices the goblins were already wounded and carrying items, suggesting they were fleeing. The episode ends with the uncertainty of the goblins' situation and what lies ahead.
Adrián awakens an SSS-level beast, but it’s the weakest ever—a slime. Ridiculed and underestimated by everyone, his fate seems sealed. Yet everything changes when a world-ending alert flashes in his mind system, igniting the fight for survival. Facing impossibly high stakes, Adrián must rise against overwhelming odds, turning mockery into a desperate counterattack to save the world before it’s too late.