Noctis is an omega and the other bros are all alphas. The omega is the center of a pack and is therefore protected at all costs. When The bros are captured (by anonyone the author chooses), they alphas are forced to watch as their precious omega is raped in front of them. When an omega is forced to mate outside his pack, his body rejects the offender which makes sex very painful. By the end of the rape, Noctis is writhing in pain and screaming for his Alphas to help him. THe bros somehow manage to escape and rush Noctis to the regalia where Gladio cradles him in the backseat. When they reach a haven, the bros care for their wounded mate. Over time they slowly help him recover from his horrific attack.

*Please note that while Noctis is mated to all three men, the others are only mated to Noctis. The alphas are not romantic with each other

+++Noctis is extremely traumatized and wants to be held at all times. He cries when his alphas let him go for even a second.
++++Ignis is tasked with cleaning Noct's wounds and breaks down upon seeing the damage to his body.