My take: It’s somewhat an Isekai where the protagonist is taken to another world with two other classmates of his. They have to complete these quests in order to go home.
Synopsis for a website: Aloof and logical middle school third-year Yusuke Yotsuya is transported to a game-like alternate world. He becomes a third player and takes on a dangerous quest with his classmates Iu Shindo and Kusue Hakozaki, who were transported there earlier. The cold Yusuke eschews emotionalism and examines all elements with detachment, sometimes even toying with the lives of his companions. Can he protect his party from attacking monsters, difficult incidents, and powerful scheming enemies and win the game?
Trailer: https://youtu.be/U26Up23GGDk
There’s also a season 2 coming out July 2021.
P.S: You might want to be careful reacting to this anime, because as far as I’ve seen not many people have reacted past episode 2.