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Natsuki Subaru, an ordinary high school student, is on his way home from the convenience store when he finds himself transported to another world. As he's lost and confused in a new world where he doesn't even know left from right, the only person to reach out to him was a beautiful girl with silver hair. Determined to repay her somehow for saving him from his own despair, Subaru agrees to help the girl find something she's looking for...
The story will feature the film's main character, Sabuibo Mask, attempting to solve various problems in his rural town.
In a future world dominated by corporations, Iria is one of the best in the bounty-hunting business. Her latest challenge is the lifeform codenamed Zeiram, an invincible killing machine built to be the ultimate weapon -- but this time, cash is not the only motivation. Iria must uncover the secret behind Zeiram and stop it at all costs in this action-packed OVA series.