Mechanical Guided Demonic Armor Excavator

"Mystic Armor" is a popular game that developed from a certain robot anime as its source material. Shoji Shigino is a young man who, despite being a working adult, is completely absorbed in it. He is what one would call a gamer and an otaku that would be embarrassing to show to anyone. However, his presence within the game was remarkable, and he was known as one of the top players in the world. On the day of a version update for the game that he had been pouring his effort into alongside his work, he eagerly headed to the game center where he had become a regular, and slid his body into the latest large arcade cabinet—but then something happened.