Diluc was an alpha of Mondstadt. He was unmated despite the amount of omegas and betas throwing themselves at him. Diluc didn't believe in claiming a mate, he barely looked at any beta or omega who wanted him. Diluc swore to not ever claim a beta or omega as his.

Diluc was currently drying wine glasses in the Angel’s Share when he caught the scent of an omega. For some reason, Diluc was entranced by the omega’s scent. He looked around and his eyes landed on you, an unmated omega.