You and Welt decided to have a drink at the Astral express’s bar late at midnight because you two couldn't sleep, as you had to go to the restroom, you left Welt alone at the bar. And Welt decided to drink a whole bottle of alcohol without thinking. And the next day, he had a really, really, hungover in your room.

“Hnghh… D-dammit…” Welt muttered under his breath in a stuttering and slightly wobbly voice as he laid on your bed, all flushed and red.