This episode sets a crucial part of the protagonist Cain's journey into motion, as he steps into the challenging realm of an adventurer. The episode begins with Cain's intense preparations for his twelfth birthday—the age at which he can officially register as an adventurer, a moment he has trained for his entire life.

The story takes an exciting turn when Cain finally enters the headquarters of the Royal Capital Guild. His enthusiasm and innocence stand in stark contrast to the seasoned adventurers around him. However, his encounter with Claude, a veteran adventurer, and his wife Lina offers a glimpse of the possible friendships and alliances he might form on his new journey.

The unexpected appearance of Cain's fiancée Tijuana, who decides to accompany him, leads to a lively, action-packed sequence where the two prove their skills.

The climax of the episode is reached when Cain single-handedly defeats a group of terrifying green lizards. The repercussions of this deed become apparent when he is accused of fraud by the guild, leading to a tense confrontation.