Nagamasa is the husband of Oichi and brother-in-law of Nobunaga in the game Sengoku BASARA 2. He fights with a sword and shield. Nagamasa's "joke" weapon is a paper umbrella. In Sengoku BASARA 2: Heroes, his Special Item is the Sword of Light, which remains active for three minutes from the beginning of the stage in which it was equipped. He appears again in Sengoku BASARA 4, which chronologically takes place before the first game in the series.