The Imperial Clan Has Fallen, I Started My Counterattack by Going Back to the Past

[Two Realms + Imperial Clan + Invincibility + Decisive Killing + Exciting Upgrades, Do Not Pressure the Realm] Su Yun once traveled through the fantasy world and became the young master of the Su family, a declining imperial clan. Other time travelers are invincible at the beginning, but he had better start with Heaven Collapse! Not only was the family in danger and could be destroyed at any time, but he also had his cultivation level destroyed at the beginning. Just when he thought he was going to die again, the strongest space-time system was suddenly activated! [Ding, the strongest space-time system has been successfully activated! [This system has a time and space shuttle function, which can help the host travel through time and space and go back to the past! … Su Yun traveled through time and space and successfully returned to the ancient times. At this time, the Su family has not declined, but is in its heyday. One sect and five emperors! Extremely brilliant! They are even revered as the number one imperial clan in the world! Since then, Su Yun has started his development path in both worlds. … In ancient times He ascended to the position of the Son of God step by step, rapidly improving his strength, and through his understanding of the development of later generations, step by step eradicated the culprits who caused the decline of the Su family, and reversed the fate of the Su family's decline. … In the real world By using the system's rewards and the huge resources of the past imperial clan, he continued to develop the Su family, which was in decline, so that the Su family could rise again and regain its position as the imperial clan! Overwhelm all races! And destroyed the enemies one by one, successfully taking revenge. … Many years later... At this time, the Su family has already dominated everything, with countless emperors and invincible in all the worlds. And Su Yun transcended everything and became a taboo-like existence...