Meet Yuu-Ryuu, a remarkable entity that has witnessed millennia pass and has faithfully served the Tsukino Clan for countless generations. His story unfurls during the tumultuous Nanbukucho Wars, a time when the Tsukino Clan was renowned as a premier ninja dog training clan.
Yuu-Ryuu emerged as the pinnacle of excellence among ninja dogs, having undergone rigorous training. He was specially paired with the Mangetsu of that era before they embarked on the battlefield. This pairing would prove to be pivotal, as together, the Mangetsu and Yuu-Ryuu altered the course of the war. Their valor not only solidified the Tsuki no Kiba Clan's reputation as skilled assassins entrusted with eliminating powerful warlords but also established them as formidable warriors capable of direct combat.
Upon the fall of the Mangetsu, a solemn duty was passed to Yuu-Ryuu — a charge to continue safeguarding the Tsukino Clan at all costs. When the time came for Yuu-Ryuu's own transition, this sacred charge was activated. Remarkably, Yuu-Ryuu's soul endured, passing from one Mangetsu to the next, forging an unbroken connection that has persisted through the ages.
This timeless tale reveals the profound bond between Yuu-Ryuu and the successive Mangetsus, a bond forged in the crucible of war and duty. It is a testament to the enduring legacy of the Tsukino Clan, where the spirit of protection and loyalty transcends generations. Yuu-Ryuu's presence remains a symbol of unyielding dedication, ensuring that the Tsukino Clan's heritage endures, and their history continues to be written by those who honor their legacy.