Iutjim Guild-won

After a stalking incident, Yoon Ji-gu has become understandably wary of strangers. So when an odd man moves in next door, he immediately suspects the worst. Little does he know, Yeowoon is just a regular guy trying to land a job and enjoy his free time—until he finds himself dealing with a hostile neighbor. As their real-life misunderstandings escalate, the two unknowingly team up in their favorite online game, forming an unexpected duo. Get ready to log in to a new adventure full of hilarious mix-ups, a distrustful tsundere, and an unwitting flirt with a heart of gold.

(Source: Lezhin US)
Note: Season 2 is rated R19