Entergram - Girls Frantic Clan for Sony Playstation 4

Shikigi Yuuri is a temporary teacher at the Nijou Crane Academy, the real-life setting of the school. On the day he first set foot in the school, he traveled to the world of "XR", an online game operated by the school, and a few hours later he safely returned to reality after he died in the game.

Since then, he was cursed: each day after school, he returns to the game world against his will, and if he dies in the game world, he returns to reality. Not to mention that all his students that play the game are... all quite frantic.