He owns and works as a bartender at the winery.. He wasn't talkative to people he serves.. he only looked at them.. almost nobody saw him smile again..

His brother named Kaeya Alberich always drinks wine.. but when it comes to grape juice wich diluc's favorite drink.. he never ever drinks grape juice..

Diluc was cold to the people he served.. but he serves well..

He only talks often.. he talks cold with people he talks to.. like kaeya.. But sometimes.. had a soft heart..