What-not shop? / Jack of all trades? / Do-anything shop?

A world where the Third World War has ended. In this war, the disparity in weaponry had disappeared, and it was predicted that the country with the largest population would win. However, Japan repeatedly conducted research with a policy of amplifying individual combat abilities, and succeeded in developing supernatural powers. The effects were significant, and the war quickly ended with consecutive victories by the Japanese military. The ability users who played an active role in the war were praised as heroes and also feared. The government proposed to protect the ability users under government supervision. But those who hated having their freedom taken away rejected this proposal, destroyed the facility, and disappeared along with a large sum of money. Thus, the world fell into a great depression...