Kenjuu Tenshi summary:

The rogue cop Ham Egg is plotting to take over a small town on the border region between New Mexico and Arizona. Only one thing stands in his way: a Native American sharpshooter known as "Monster". Aiding Monster are two other young sharpshooters, Anna and Jim, who combat Ham Egg and his gang to end corruption and liberate the town.Cover image shown is from the edition published 1993.