Su Chen accidentally traveled through time and became an ordinary genin of the Senju clan during the Warring States Period of Hokage. Knowing the cruelty of the ninja world, he brought his "gou Dao" to the extreme. Don't be aggressive or showy, stay low-key and survive in the flames of war, and skillfully maneuver among the major forces.
From the Warring States Period to the founding of Konoha, and through several great ninja wars, he always hid in the shadows, silently developing his power and studying ninjutsu. Relying on the experience and resources accumulated by Gou Dao, he secretly helps the younger generation grow up.
When the crisis of the Boruto era came, Su Chen, who had become a legend, came out again and used his profound knowledge to resolve new threats. After his success, he quietly retreated behind the scenes and continued to protect Konoha with his ethics and witnessed the changes in the world of Naruto.