The Millelith Army's Mysterious Medic
"The soldiers seem to relax as soon as they discover that Heiyaoshi is around. Not only does he treat any kind of wound with the utmost care, he soothes his patients with gentle words and assurance, like a mother pampering her child." — Baizhu
Liyue is especially lively at night, illuminated by restaurants' and shops' late hours, under the careful watch of the glazed obsidian moon.
The battlefield is certainly no joke, and Liu Heiyaoshi knows that very well. But any soldier who has served for long enough knows that anything put under Heiyaoshi's care will not only return as good as new, but even with a little bow on top like a mindfully wrapped gift.
That's all most know about him. Medic by day... no one knows what he does at night. If one wished to meet him outside of work, the best time to do so would be midnight, near the beginning of the month, when the moon is its brightest. Even then, there is a good chance he is still as undetectable as any other night. An easier—and safer—way to find out what Heiyaoshi does after work is to ask one of the few he's closest to; a confident, outgoing young man who is quite literally nothing like Heiyaoshi.
He seems to have a knack for numbers and the stars, which he'll go on and on about... But when asked about himself, he'll always say;
'All these stars, but you turned to me?'