Masamune Date is a warlord from the Date army in the parallel world of Shinga, where supernatural clans vie for power. He belongs to the Gekka tribe, a clan of werewolves, and is known by the epithet the One-Eyed Werewolf due to the eyepatch he wears over his right eye. His hair is long and dark violet, and his eyes are purple. He is a prideful and unconventional figure, often described as a nonconformist who disrupts the established order. Despite his sharp tongue and sour demeanor, he struggles to be honest with his own feelings and frequently says the opposite of what he truly means. This difficulty in emotional expression stems from his upbringing and the harsh expectations placed on him. On the battlefield, Masamune is a crafty and ruthless strategist, capable of turning the tide of combat with unorthodox tactics that confuse his enemies. He is fiercely independent and motivated by a deep sense of pride in his abilities and his clan. Within the story, he serves as the general of the Date army, interacting and clashing with other warlord factions such as the Toyotomi, Uesugi, and Takeda armies. His key relationships include his loyal retainers Shigezane Date and Kojuro Katakura, who support him in both military and personal matters. Over the course of the narrative, Masamune shows signs of development as he gradually learns to lower his guard and express his genuine care for others, moving beyond his initial prickly exterior. His notable abilities include enhanced physical prowess typical of werewolves and a keen tactical mind that allows him to seize the advantage in chaotic situations.