Iron-Winged Qintian: the Mysterious Bird Illuminates the Great Qin

The protagonist Lin Xiao drives China's latest J-XX "Xuanniao" sixth-generation stealth fighter and travels back to 238 BC (the eve of Ying Zheng's takeover) The fighter aircraft is equipped with: AI "Nuwa", laser defense, hypersonic cruise, micro tactical nuclear bomb (deterrence only), nano self-healing, quantum communication (one-way reception) Core principles: Technology cannot be copied, energy is limited, and historical trends are irreversible, but it can lead civilization to a less bloody unified path.