A Japanese samurai of the Sengoku period, known as one of the wisest of the Otomo retainers. In 1585, the region of Korasan was engulfed in smoke as Tachibana Dōsetsu and his troops waited in the nearby forests to strike a decisive blow against the Ryūzōji army. Despite the enemy's attempts to cover the battlefield with fire, Dōsetsu used the smoke as cover to deceive the enemy and sent a detachment to launch a surprise attack. The detachment feigned a retreat to draw the Ryūzōji army deeper, engaging them briefly before leading them into an encirclement. At this point, Dōsetsu's troops in the forest emerged and launched a devastating attack, causing the Ryūzōji army to scatter in defeat. The battle concluded a few hours later, with Tachibana's army emerging as the victors. Tachibana Dosetsu was renowned as one of the bravest and wisest of the Ōtomo retainers.