Puppet Emperor? Then I Can Only Summon My Ancestors

[Fantasy]+[Dynasty Hegemony]+[System Summon]+[Invincible] Once I traveled through time and became the emperor of another world, I thought I would have a harem of three thousand beauties, hugging each other and enjoying myself. But I didn't expect that I was just a puppet emperor... It doesn't matter, awaken the ancestor's protection system and summon countless generals and counselors from China! Sun Wu's strategy, Bai Qi's killing power, Han Xin's military skills, Zhuge Liang's miraculous calculation... When these ancestors appeared one by one, the other world trembled. The ancestors, with their invincible attitude, helped me overcome all obstacles. From now on, wherever the sun and moon shine, and wherever the rivers reach, it is the land of Xia. [The introduction is weak, please move to the main text, the further you go, the more exciting it will be]