By the Grace of the Gods (2020)

S2E10 Ryoma and the Flying Slime

After receiving a request from Worgan, Ryoma and a few of his adventurer companions embark on a mission in a nearby forest to gather materials from Treants. However, their expedition takes an unexpected turn as they encounter a more formidable foe—the Elder Treant, an evolved form of the monster they intended to hunt.