あらすじ
The boy Sota was betrayed by his party members and pushed off a cliff on the grounds that he could only use basic magic no matter how much time passed. Narrowly escaping death, he met a puppy at the bottom of the cliff. However, this puppy speaks human language and calls itself the "Gatekeeper of Hell, Cerberus." Half-doubting, Sota completes a contract as urged by the puppy. He names his small partner "Kel." Now, this Kel is super strong despite its cute appearance! Moreover, according to Kel, what Sota is using is the lost "Ancient Magic." Sota cannot immediately believe in his own power. To give him confidence, Kel matchmakes a dungeon-clearing competition between Sota and the party members who framed him... The long-awaited comicalization of the 4th Next-Generation Fantasy Cup "Unique Character Award"!