Genshin Impact: the Promise Between Shark and Haru

What will happen when the number one assassin from the Dark Assassin Organization comes to the world of Genshin Impact? The heroine Ke Qing and the male protagonist Lan Feng adapt King of Glory Lan's ability: Where is this? I don't remember this place being mentioned in the mission. This is the continent of Teyvat. Welcome here, the strongest assassin. I feel your confusion about your world. Now I need your help to prevent the collapse of this continent. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.