When Mel Rairoot, an orphaned boy, turned 15, he was given the unique skill of "Appraisal," which allows him to read information about people and objects. Moreover, it was an extraordinary skill that should not exist, surpassing even the legendary rank "S"... rank "EX"!
However, since "Appraisal" can also read information about people, there is a risk that it will be targeted by criminals who want to hide their identities. Mel's life is immediately targeted, and although he somehow manages to fight back, he is now being pursued!
Mel is forced to live on the run with Silphy, the princess of the elf country who has lost her memory, and Clara, a tiger girl. However, he makes full use of his cheat ability to brilliantly overcome many difficulties! With the "Eye of God" in his hands, the boy reads and "steals" the power of the legendary hero, and rises to the top!