Another favorite drink in K-Dramaland is to mix soju with beer.
Also, soju is used when visiting bury grounds and served to the dead family members there. “You give it to the dead,” says somebody in The Legendary Witch-34 to mention this custom.
Drinking etiquette for soju
Soju has to be drunk in one shot from a small glass. After drinking people sometimes slam the glass on the table, make a grimace and the sound “Kkkk,” “Keeehh,” or “Ahhhh” (or only the latter two).
Also, people usually don’t pour the drink for themselves. There are rules who pours for whom depending on age, hierarchy and gender. When pouring soju for somebody else, people will hold the bottle with one hand and either support the serving arm with the other hand or put that hand on their chest. Rules of politeness also make people hide their glass behind a hand or turn away their head from their interlocutor when drinking.