Matsumura Zane is a bushi of the Lion Clan, participating in a significant battle against the Unicorn Clan. He engages in a duel, adhering to the established etiquette of combat. During the duel, he loses initiative to a Unicorn Duelist employing a flowing-water technique, resulting in fatigue and a bleeding condition. Despite this setback, he summons his Hunting Cat with a whistle, which leaps onto the Unicorn Duelist's back, causing a critical injury and disrupting the duel.
After the duel, chaos ensues as both sides scramble to rescue their wounded commanders, allowing Matsumura Zane to evade capture while receiving first aid from a fellow Lion Clan soldier. In a council meeting, he publicly offers to champion his general, Matsu Sakura, against the Unicorn Clan leader, which breaches etiquette and costs him honor. Matsumura Zane also invokes the Call of the Wild to enrage General Shinjo Kamo's warhorse, sparking a heated exchange. Subsequently, he participates in planning a strategic flanking maneuver against the Unicorn Clan forces, successfully arguing for the operation and receiving approval to lead the detachment alongside Kitsu Somalia. His actions significantly contribute to the Lion Clan's strategy in the ongoing battle.