The highly esteemed Grimwood Prep, a boarding school for elite students. But these are students being trained as assassins, protectors, personal bodyguards to groups, establishments, and the government. These students go on top secret missions and other types as assignments, but at the very top outshining the rest are fraternal twins Kai and Kayden Riddle. Excelling at every task thrown at them, they make close friends, team up, all while killing and saving those that deserve what fate dishes out for them. With a haunting dark past will these twins be able to overcome and protect the two people dear to them while being ace students, or will they repeat their worst fears. This is a collab story by @NinjaLC and @Ayano_Hiromi.