This structural shift allows the creators to breathe. The main series was dense with plot twists and high-stakes battles. By contrast, The Treasure Chest of Courage allows the camera to pan away from the central conflict and focus on the periphery. It answers the questions that attentive viewers might have had: What happened to the characters who fell by the wayside? What were the specific circumstances that shaped the villains? How did Bojji and Kage’s bond truly solidify during their travels?
The series excels by shifting the spotlight away from grand battles toward the internal growth of its ensemble cast. We see the hidden struggles of Prince Despa, the maternal anxieties of Queen Hilling, and the complicated pasts of the Big Four. These vignettes humanize the characters further, showing that their "courage" isn't just about wielding a sword—it’s about the vulnerability required to love and the resilience needed to overcome personal failure. Ranking of Kings- The Treasure Chest of Courage...
The original series took us on a rollercoaster through the Underworld, the trials of the demon, and the shocking backstory of Bojji’s father, King Boss (the giant, physically broken titan who lost his strength to a demon). The conclusion of the main arc is satisfying, but it leaves a hunger. How did Bojji survive his childhood? What were the daily horrors and tiny victories that forged his unbreakable will? That is where The Treasure Chest of Courage comes in. This structural shift allows the creators to breathe
The “treasure chest” is not found at the end of a quest. It is the chest of memories—shameful, joyful, banal—that each character carries. Courage, the series ultimately argues, is not the strength to open the chest in triumph, but the strength to open it in the middle of an ordinary Tuesday, look inside, and keep living. It answers the questions that attentive viewers might
Unlike the main series, which followed a linear, serialized narrative of war and succession, The Treasure Chest of Courage adopts a semi-anthological format. While there is an overarching "present day" storyline involving Bojji’s first official journey as a recognized king, the bulk of the series consists of side stories and prequels that fit into the gaps of the original run.
Ranking of Kings: The Treasure Chest of Courage (Sama no Takarabako) serves as a poignant, episodic expansion of the original series, proving that Bojji’s world contains far more depth than a single linear journey could hold. Rather than a direct sequel, this collection of side stories acts as a bridge, filling the emotional gaps of the first season and reinforcing the series' core philosophy: that true strength is found in the quiet moments of kindness and the courage to remain soft in a hard world.
Similarly, the "Chest of Courage" is a metaphor for the human heart. We all have a chest inside us where we store the painful memories, the rejections, and the small moments where we chose to be brave. Bojji’s treasure chest is full. The OVA invites the viewer to open their own.