[black_cat1]

Well, something about politic of the world

Spoiler for spoiler:

There is another hero, "Hero of Ward", doesn't need to be summoned, the only condition is being accepted by the weapon, hence anyone can be "Hero of Ward".

Hero of Shield is detested by the Church and Royal because he is described as someone who is gentle toward Sub-human and Beast Human in the legend, something unaccepted by the human kingdom that treat Sub-human as slave. In the kingdom of Beast Human, they only worship the Hero of Shield (because he is good) and hate other heroes.