Diluc Ragnvindr, owner of the Dawn Winery and Angel Share tavern in Mondstadt, the City of Freedom. He's known for his high-quality wine, and his services are a top-notch. He's also a very skilled fighter, known to wield a claymore with a pyro vision at such a young age. Kaeya Alberich, the Cavalry Captain of the Knights of Favonious. He's a charmer, a flirt, yet a mystery to be discovery. He wields his sword and a cryo vision, bringing cold pain to his enemies. Underneath his eyepatch may be the key to his origin. These two are known to be sworn brothers despite being unrelated to each other, but their bloodshed fight broke that relationship. They no longer see each other as brothers. Perhaps they can restart their relationship again? Lord Barbatos knew well. Master Diluc often serves alcohol and beverages for his patrons, no smile. Kaeya often teases Diluc for it. Will they finally reconcile, or will they forever distant? This is The Bartender's Secret. (Haters, please don't read if you don't like Luckae)