The Ultimate Duty (slow updates)

Hayko Fumikawa, former soldier and actual first heir to the throne of The Land of the Armed Lion, one of the wealthiest and strongest empire of the world, enters Heather's Academy, one of the world's most popular high schools to investigate and destroy an organisation that catch "cursed" people and experiment on them so they can get their quirk and get to control the world; and hide from her enemies so she wouldn't be targeted and killed by them. Will she make friends and find love? Read to find more.