The Drifting Classroom, Vol. 1 by Kazuo Umezu

In a gripping tale of survival and horror, a Japanese elementary school is mysteriously transported to a barren wasteland, leaving students and teachers stranded in an unfamiliar and hostile environment. As panic ensues, the group must confront their fears and work together to navigate the challenges of their new reality, including dwindling resources, internal conflicts, and the looming threat of an unknown force. The story delves into the psychological and emotional turmoil faced by the characters as they struggle to maintain hope and sanity in the face of overwhelming adversity.