Deathcord

Kyeong-Min, who has low self-esteem due to being bullied by his friends, is suddenly invited to a 'Deathcord' chat room where he can kill people by voting. Vote for the death penalty in the chat room anonymously! Anonymous participants invited into the chat room become frantic about killing people for their own reasons.

However, one of the chat participants is subject to death penalty, and after that, the 'Deathcord' chat room participants start struggling to reveal each other's identity...

The killing game that will not end until the participants kill each other begins!

(Source: Naver, translated)

Note: Deathcord (데스코드) is a play on the site Discord (디스코드).