The author is MP13Girl

The Defensive Affairs Unit is a top-secret, super-powered society that protects the planet from threatening villains. After being recruited, the new recruits are split into separate teams and, after extensive training, sent out to protect the Earth with everything they've got.

But then there's VAKAD, a new team of the DAU. The five members are completely different from each other, and that could cause a lot of trouble. With their egotistical leader, the beautiful airhead, the know-it-all nerd, the intimidating bad boy, and the troublesome loner, they are definitely the most difficult team the DAU has ever had to deal with.

Join Violet, that troublesome loner, through her adventures and misadventures with the four idiots she is forced to call her teammates and, even worse, her friends.