Buddy Complex: Daremo Shiranai Ashita e

A group of students discovers a mysterious device that allows them to fight in a virtual battlefield. Each participant is paired with a "Buddy," an artificial being that assists them in combat. As they engage in these battles, they learn more about the rules and the purpose behind the system. Some characters form close bonds, while others struggle with the emotional and physical challenges of the experience. The story is told through the perspective of one of the participants, who reflects on the events and relationships that develop throughout the series.