Where Does My Story Belong?

This is the life story of a pair of brothers. They both used to live a life of hardship, but they were both very close. They are Gil and Gilbert. 

Like children in the city in general, their parents are just ordinary laborers. So, even Gil and Gilbert were struggling to find food. Even in this difficult situation, they work hand in hand for a living.

But the relationship between Gil and Gilbert began to crack after the change in character in Gilbert who had reached maturity.

One day, Gilbert suddenly started to have a vicious streak. He started beating people and forcing them to give him money. Such a bastard trait came along with Gilbert's strength. 

Gilbert became one of the few commoners who possessed Mana. As a Mana user, of course, he has power above the average person in his area. 

One day, Gil realized that Gilbert had joined a crime organization. And that is the Black Box organization.