75 years ago, Earth.
Within the deep mountains, a dojo was built inside the thick forest with tall, wooden walls that echoed with the sounds of training warriors.
At the yard of the dojo, the white-clothed students punched air, their teacher observing their every move with a watchful eye.
The teacher was carrying a wooden staff, and at that moment, one of the students had a slightly wrong punching stance.
"Wrong!" The teacher smacked the staff at the student's knee. "Fix your form. Your form is ugly!"
"Y-yes, sensei!" The student breathed heavily, pain radiating from the spot where the staff had struck.
Inside the dojo, while others trained diligently, a young man used a cleaning brush and scrubbed the tatami mats until they glistened under the harsh fluorescent lights.
"Kiernan!" A senior student stepped over the tatami mats, his expression angry. "Where is my bokken?!"
