.hack//Sign

.hack is set in the fictional game world of “The World” and the real world. Players use special virtual reality headsets to immerse themselves in the game’s virtual environment. However, as the series progresses, mysterious events unfold within the game, and players face dangerous and sometimes life-threatening situations.

The anime series often follows characters who find themselves entangled in various incidents within “The World.” One of the well-known anime series from the “.hack” franchise is “.hack//Sign,” which revolves around Tsukasa, a player who cannot log out of the game and is trying to unravel the mysteries of his predicament.