The Tide

After an asteroid destroys Earth, Moon You unintentionally becomes the last person in existence, or so he thinks. Stuck on a research facility on the moon, he struggles with being the last person alive. Little does he know that humankind is watching his every move from Earth. (Source: WEBTOONS)

Just the extraordinarily unfortunate life of a high school boy... but misfortune isn't all that's extraordinary about him.

One day, an unknown egg appeared in the neighborhood. The egg spreads rapidly, and the monster that emerged from it began to kill people. And there was an SNS account where all these situations were relayed in real-time. (Source: Naver, translated)