“Captain, because of you my sister…!”

“Jang Wei, don’t call me that. You don’t deserve to mourn Seina.”

“Shut up!”

“It’s because of you that Seina ended up like that. Are you saying it’s not?”

The rain had been pouring heavily that day. It was Christmas in 2017, a day when everyone should have been happy, but Yeon-woo was going through the worst nightmare. A greater hell had faced him when he arrived at the base after he thought he’d finally left the jaws of danger.

Jang Wei—it was a name Yeon-woo couldn’t forget. He pitied the man but also despised him. He was the little brother of the woman he loved and a comrade. He was also the one who had tossed him in the middle of a battlefield under the pretext of carrying out orders. The betrayal he’d felt back then was too painful, and when Yeon-woo returned, he immediately pointed a gun at Jang Wei. All he had to do was pull the trigger, but many thoughts swarmed in his mind, leaving him with nothing but darkness.

In the end, he put the gun down, but everything began to go wrong from that point because his resentment was still there. He wanted to revenge himself and make them go through hell like he had—no, he’d make them go through an even worse nightmare.

It went without saying that Yeon-woo was as persistent in his revenge in the past as he was now. It was the beginning of a catastrophe, and none of the people involved could live...