Ruriko Wakatsuki stands as a central figure in the narrative, closely tied to the Chibikko House orphanage where protagonist Naoto Date was raised. As the institution’s caretaker, she embodies maternal warmth, offering emotional guidance and stability to its children, including Naoto during his youth. Her influence deeply intertwines with his development, as her steadfast dedication to the orphanage becomes a key motivator for his choice to channel wrestling profits into charity, ensuring the survival of the place that shaped his childhood.

Her bond with Naoto endures beyond his early years, though she remains oblivious to his secret identity as Tiger Mask. In his civilian life, he revisits the orphanage under the playful alias "Kiza," preserving ties to Ruriko and the children while shielding his wrestling persona. This duality highlights her role as an anchor in his life, reflecting his ethical core and commitment to safeguarding those in need.

The 2013 live-action adaptation maintains Ruriko’s foundational significance, depicting her reunion with Naoto after a prolonged separation. This reconnection reignites his determination to battle the Tiger’s Den organization when the orphanage teeters on financial ruin. Her portrayal underscores relentless devotion to the children’s well-being, cementing her as an emblem of empathy and fortitude. The narrative frames her as both a spark for Naoto’s redemption and a tether to his origins, accentuating the tension between his brutal career and his selfless intentions.

While sequel series like *Tiger Mask II* or *Tiger Mask W* center on new protagonists and settings, Ruriko’s legacy endures through the orphanage’s ongoing relevance, echoing her lasting imprint on the series’ themes of societal duty and personal atonement.