Genshin Impact: I Transmigrated to Teyvat and Took Care of the Abyss from the Start

[Genshin Impact + One Heroine + Furina as the Heroine + Invincible + Daily Life + Uniting the Seven Nations]

(The story takes place after the latest events, and neither Aether nor Lumine will appear in the novel.)

As the people of Teyvat struggle in a grueling battle against the Abyss, Xu Yangguang, an unknown university student from Blue Star, transmigrates into their world... With a casual wave of his hand, he reduces the Abyss' headquarters to dust in an instant.

But will Teyvat return to peace and tranquility after the Abyss is wiped out? Follow Xu Yangguang as he travels through the seven nations, eventually becoming the first president of the Teyvat United Nations, elected by the people of all seven nations.

I'm Xu Yangguang, the "Liyuean" who became sworn brothers with Zhongli, competed with Venti at drinking, taught the Raiden Shogun how to govern, married Furina, taught Nahida about the world beyond this one, was hailed as a savior by Mavuika, and made the Tsaritsa sing "Conquer."

Big Brother Zhongli was right. Though I never meant to vie for power, I know the people's suffering. I'll take the job of president of the Teyvat United Nations!

(The blurb doesn't do it justice. Please check out the story.)