Third person POV
Gen went to Reina's room, where Reina was on the floor crying while holding his medication for depression and PTSD on one hand and his rosary on the other. He was in a crutching position on the cold floor.
"Reina…" Gen said to him, catching Reina's attention very fast.
Reina then looked at him and sat down. "Oh…what is it?"
Focusing on his bottle of antidepressants, Gen replied, "Did you overdose on your medication again?"
"Y-Yeah…sorry…"
"It's fine, that's enough for today."
Gen then walked over to take Reina's medication, which Reina agreed without resistance.
"How are you?" Gen asked while putting the medicine bottle on Reina's desk.
"Not feeling well," Reina replied sadly while sniffling and wiping his tears with his right sleeve.
"I know the treatments prescribed for you had failed you…" Gen replied while glancing away for a bit, "…but I think I can help with that."
Reina stopped tearing up and was surprised at his response, though tears still flow from his eyes. "Really?"
Gen then nodded. "Yes, this would be painful for you but, in my theory, it could alleviate your emotional turmoil at least for a bit."
Reina thinks for a while and out of desperation, he says, "Yes, sure, I think I want physical pain to myself so I could punish myself for what I did to you…"
To that Gen remained his expression concerned and thought, "Yeah, I knew he'll say that…well, time to put your theory into action."
"Whatever physical pain you'll inflict on me, I'll endure it," Reina replied while standing up.
"I see," replied Gen, "come with me."
And so, both of them went to a laboratory with a hospital bed in one corner. "So here?" Reina asked.
"Yes, you can lay down there," responded Gen while putting on his black, leather gloves, "and I can strap you there if you ask for that."
"Oh, um…well…why could I ask to be strapped there?"
Gen prepared his syringe containing his modified zombie virus and looked at him. "Because I'll inject you with this, my zombie virus."
Upon seeing that, Reina was taken aback, but deserving pain to punish himself, he agreed without fearing it. "Sure, let's do the first session now?"
"Yes," Gen replied while putting the syringe on his lab coat pocket and opening a cabinet full of weapons, "but you can first ask to be tortured with any of these."
Seeing that arsenal, Reina was surprised but like with the syringe full of zombie virus, he agreed to it out of emotional desperation. "Sure…can I pick two?"
"Yup, you can sit on this corner there."
Gen pointed at the wall with the tiled floor on the bottom of it. "You can sit against the wall."
Reina did so while anticipating his first torture treatment.
With that, Gen closed the door and locked it.
"Two weapons would be a pistol and a dagger, please," Reina made his first request.
Gen did so, loading his pistol and preparing his dagger.
"But first…" Gen said, before pulling another syringe and injecting it on Reina's left arm.
Reina was surprised that it went first before the two weapons. "W-What was that?"
"That would be your On the Brink of Death."
"Wait, my serum? Did you know its formula?"
"Yes, but I'll keep it between us."
"Oh, okay…thanks…"
With these out of the way, Gen pointed his pistol at Reina's chest and shot him 3 times. Reina felt pain while enduring it, even though blood was now oozing from his wounds and mouth. And then, Gen stabbed him with his dagger in his heart, thinking this will maximize the amount of pain he would inflict on him. Reina endured the intense pain as much as he could like internally and emotionally savoring this moment that would give him the peace he was desperate to have.