After his test proves he’s reached Eighth-Stage strength, a young trainee celebrates while his master announces he must leave for the Upper Realm. The master orders him to honor a twelve-year-old marriage pact to marry the Nelson's daughter, and charges him with a black tower and a red emergency pouch. The trainee, resentful about being sold as a child, agrees. Mr. Smith escorts a Miss as an Arcane Realm master on the road. Their journey is interrupted when fish leap, the ground quakes and a flying mountain appears, an immortal arrives, leaving everyone stunned and danger looming.