ZhongXiao

ZhongXiao is the slash ship between Zhongli and Xiao from the Genshin Impact fandom.

Canon
Both Xiao and Zhongli have been around ever since before the Archon War, making them more than two-thousand and six-thousand years old respectively. One day Xiao encountered Morax (Zhongli), the Geo Archon on the battle field during the Archon War. Before their meeting, another god had enslaved Xiao. During that time, Xiao wasn't his true name. The god had forcefully made Xiao slaughter in cruel ways until he was finally freed by Morax. With the help of Morax, he was finally given his current name, Xiao.

In order to show his gratitude to the god who freed him, Xiao shouldered the burden of protecting Liyue during the following years, up until present time. As an adeptus he protects the people of Liyue from danger and continues to serve Zhongli.

During the 'death' of Rex Lapis, Xiao is dismissive of the news when he hears it from the traveller, mentioning that though times have now changed, he never thought of a Liyue without Rex Lapis. Afterwards, Xiao goes and informs the other adepti about the death of the Archon, continuing to carry out his duties.

It is implied that Xiao knows of Rex Lapis' mortal form with evidence from his voiceline "About Zhongli", referring to Zhongli as 'Zhongli-daren' and 'Zhongli-sama' in the Chinese voice and Japanese dub respectively.

In a voice line Zhongli asks the Traveler to give Xiao medicine to help with his karmic debt, showing that he cares for Xiao's wellbeing.

During the second Lantern Rite festival, Zhongli can be found at Wangshu Inn and will state he visited to provide Xiao with comfort, but wasn't able to find him at his usual spot at the top of the Inn.

In the 2.7 questline Perilous Trial, Zhongli and Xiao are seen in their first on screen interaction. Xiao asks for his blessing to explore the Chasm in search of the nameless yaksha, and Zhongli hesitantly agrees. Later, at the end of the quest, Zhongli rescues Xiao from certain death, but leaves before Xiao sees him. Xiao later comments he feels he was a burden to Zhongli, but seems to reconsider when Paimon challenges the notion by arguing how many times he's helped Zhongli. Xiao also mentions to the traveler that Zhongli had told him they are a "witness", providing another example off off screen interaction. Zhongli denies having been to the Chasm afterwards.

Quotes
"Can I ask... Zhongli — what does he do with his days? Huh? Birds, antiques, flowers... Hmm... What deeper meaning do they hold?"

- Xiao about Zhongli "Morax...? What do you know of that name!? He gave me the name Xiao, and released me from the endless pain i endured. I will not forgive those that dare to speak against him, even you."

- Xiao about Morax "Being constantly on the move must be tiring for him. My purpose in coming here was to give him a few words of comfort, but to my surprise, I did not find him on the roof... [...] Nevertheless, this trip was by no means a waste. Besides, there will be no shortage of opportunities to meet in the future."

- Zhongli about Xiao "In the fables of another world, the name Xiao is that of a spirit who encountered great suffering and hardship. He endured much suffering, as you have. Use this name from now on"

- Rex Lapis words to Xiao during their first encounter "You speak of the young adeptus of Guili Plains... *sigh* Still fulfilling his duty to this very day. Please give these Remedium Tertiorum to him on my behalf. Oh—and be sure to not let Paimon eat them. Nothing of this world can withstand the power of this medicine."

- Zhongli about Xiao

Fanon
It's one of the most popular ships in the Genshin Impact fandom, not counting fan written works, particularly among the Chinese and Japanese fanbase. Fans of ZhongXiao for the most part portray Xiao as Zhongli's loyal follower, and Zhongli as a kind and benevolent God who looks out for Xiao's wellbeing.

Many in the Western Genshin fandom headcanon Zhongli and Xiao's relationship as familial, but fans who ship ZhongXiao don't generally take to this interpretation of the lore. It currently has 700+ fan written works on Archive of Our Own.

Trivia

 * The emojis 🔶👹 are often used to represent ZhongXiao, the diamond representing the geo symbol and the oni representing Xiao's mask.

Fandom
FAN FICTION

ART

Zhongxiao tag on Tumblr

Zhongxiao tag on Pixiv

鍾魈 Zhongli/Xiao tag on Pixiv

#zhongxiao tag on Twitter