Kunihiro Horikawa is a character from the online game and anime series 'Touken Ranbu'. He is a personification of a historical sword, known for his calm and gentle demeanor. Kunihiro serves as a companion and retainer to Izuminokami Kanesada, and the two share a strong bond. Throughout the series, Kunihiro demonstrates loyalty, intelligence, and a strong sense of duty. As a sword warrior, he fights to protect history from being altered by malevolent forces. His character adds depth and emotion to the storyline, emphasizing themes of friendship and loyalty.