I'm standing on 1,000,000 lives.

Yotsuya Yuusuke and his classmates Shindou Iu and Hakozaki Kusue find themselves transported to a fantasy world filled with mythological creatures. The Game Master appears, assigning them a time-limited quest and providing Shindou and Hakozaki with the roles of Magician and Warrior, respectively. Yotsuya, however, is given the role of a Farmer, seemingly at random. To survive, the students must complete multiple phases of random quests in the fantasy world, all while protecting the real world from demons and monsters they encounter.