Gisuke is a retired college professor. His wife has passed away, and he is now living alone in an old Japanese-style house. One day, an unsettling message appears on his computer saying that the enemy is coming.
Overview：Gisuke is a retired college professor. His wife has passed away, and he is now living alone in an old Japanese-style house. One day, an unsettling message appears on his computer saying that the enemy is coming.
