Turn in the Double Door at the Beginning and Build a Dragon City of Thousands of Miles.

Ji Yi got a double door to travel between the two worlds, as an old bookworm. Decided to turn in the double piers! At this time, the god-level choice appears. Option 1: Become a star traveler! Reward Zerg genes, ignore any harsh environment, and wander around the universe at ease. Choice 2: Change history and live together or die together! Rewards with blueprints for the construction of Wanli Dragon City, a comprehensive upgrade in physical fitness, and a joint fight against the Zerg. Ji Yi chose 2. The Wanli Dragon City project was launched to resist the Zerg. The electromagnetic railgun project was launched, shocking Xiaoxiao. The Xuanyuan Mecha project was launched for air strikes. The Tiangong mothership project was launched, fighting in outer space, and sniping against the Zerg fleet. The moment Wanli Dragon City was built, the moment the electromagnetic railgun was activated, the moment the Tiangong mothership took off... The truth is only within the range of the Tiangong mothership. From then on, Zerg and humans changed roles, and hunters and prey changed identities. Lin Yi stood on the Tiangong mothership, looking at the endless Zerg fleet, and said solemnly: "From now on, offense and defense have changed." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.