Pick up Treasure Chests in the Ghost World

I took a nap in school and traveled to the world of Mr. Zombie. Moreover, this world is a comprehensive world. Fortunately, with the point-adding system, you can add points to anything. Add some points to a cat and it becomes a mysterious cat. Adding points to a skill means completing or upgrading the skill. Add points to a sword and it becomes the Heavenly Sword. ................................................................. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.