The Empress Sent Me to Marry into a Foreign Tribe, and I Made Them the True Rulers of the Grasslands

[The protagonist has a System but rarely uses it + won’t be sidelined + some angst]

Modern man Li Jianyuan is born into the Tang dynasty as a prince, but he can’t change the course of history. The Great Tang is still usurped by the villainous empress. Unexpectedly, she comes up with a plan to marry off the prince to a foreign land. Just when he thinks his path is at an end, he discovers that the people on the steppe aren’t as vicious as the rumors say. His father-in-law, who fusses over him, is nothing like the terrifying figure from the Central Plains tales, the one said to frighten children into silence.

Prince: I have a name but no soldiers. There’s no way I can beat the villainous empress.

Turks: We have soldiers but no legitimacy. The people won’t obey us.

Prince/Turks: How can we make up for what we lack?

Empress: There is a way, brothers, there is.

Prince [fist bump] Turks

Khan: Son-in-law, eat first. Go on, eat.

Li Jianyuan: I want to be emperor so badly.

Khan: “Son-in-law, the steppe is colder than the Central Plains. Here, let me get you another layer.”

Li Jianyuan: “Uh, Father-in-law, what are you doing?”

Li Jianyuan: I am the legitimate grandson of Emperor Taizong Wen! My cavalry is the Great Tang’s cavalry! Wu Zetian? A usurper and traitor! I am the rightful ruler! I will restore the Han dynasty! March south! Capture the dragon!

Li Jianyuan: Oh yeah! All Han people, mobilize!

Mobilized ☞ The Khitans have joined the Great Tang camp.

Mobilized ☞ The Uyghurs have joined the Great Tang camp.

Mobilized ☞ The Tibetans have joined the Great Tang camp.

Mobilized ☞ The Jurchens have joined the Great Tang camp.

Mobilized ☞ The Shuofang faction has joined the Great Tang camp.

Mobilized ☞ The Longyou faction has joined the Great Tang camp.

Mobilized ☞ The Guanzhong faction has joined the Great Tang camp.

Mobilized ☞ The Yanzhao faction has joined the Great Tang camp.

And this one ☞ The Turks have changed their name to [Great Tang]

!! Some angst !!