# Chapter 1
There are two types of people in this world.
Benics, who give blood, and Neos, who drink that blood. These traits, determined from birth, typically manifest around age 17, when one is recognized as an adult.
Once manifested, a ‘Benic’ must periodically discharge blood. Similar to the concept of eliminating bodily waste, simply bleeding has no meaning—there must be contact with a Neo. If left unattended for a long time, various abnormal symptoms appear, such as poor condition, inexplicable restlessness, and sexual frustration.
Conversely, a ‘Neo’ must periodically drink a Benic’s blood. Otherwise, they experience extreme thirst that cannot be quenched with water—this period is the Neo’s Bloody Cycle.
And Roman Frang was no exception.
***
Footsteps echoed in the quiet corridor. The butler following a step behind hurriedly opened the door.
“…!”
The moment he stepped inside, someone grabbed Roman’s arm and pulled him in. Soon, something covered his lips. Roman’s eyes widened, but he quickly relaxed his body and let the other person do as they pleased. He knew that pushing back would be futile anyway.
“Haah… Roman…”
A low moan flowed from the other person’s mouth. The moment he registered it, goosebumps rose along Roman’s spine. He didn’t particularly enjoy the act of mixing saliva, but the moans the other person let out were quite sexually stimulating. It was probably due to the sense of disconnect from usual.
“That’s enough, mmph…!”
Before he could finish speaking, his lips were devoured once again. A tongue stirred inside his mouth, rubbing, sucking painfully hard. After pouring out kisses that could only be described as rough, the other person finally released Roman.
Roman let out ragged breaths and wiped his lips with the back of his hand. His lips and tongue tingled from how hard they’d been sucked.
“You’re late.”
“I came as quickly as I could.”
As if he wouldn’t listen to any excuses, Diego pulled the back of Roman’s head and buried his face in the exposed nape. Roman frowned at the tingling pain that spread through him. It was to be expected when Diego was chewing on the delicate skin above his collarbone.
There would definitely be bruises, but Roman didn’t particularly mind. Today was his Bloody Cycle, after all. As if infected by that heat, Roman’s cock had become erect frighteningly fast from the moment the wet kisses began.
“Haah… Stop tormenting useless places and touch me down below. I’ll do it for you too.”
Then the pressure squeezing his waist disappeared as a hand suddenly slipped into his pants. Roman gasped and threw his head back.
True to his mercenary origins, Diego wasn’t just well-built—his hands and feet were large too. His brutish strength kneaded Roman’s cock almost painfully. It was a sensation close to pain, but even that quickly transformed into pleasure.
After leaving another bite mark on his nape, Diego spoke in a low, threatening voice.
“You said you’d touch me, so why are you just standing still?”
“…I never said right now.”
Even as he said that, Roman immediately reached his hand toward Diego’s center. He almost let out an inadvertent gasp. As expected, it was already fully erect, needing no help to stand.
As he slowly moved his hand, he swallowed reflexively. Thinking that this would soon be splitting his body open, the tension of his hole stretching taut already began to build.
Meanwhile, Diego was leaving marks wherever his lips touched, baring his teeth or sucking hard. Knowing he would continue endlessly if left alone, Roman lightly pushed his shoulder and pulled away.
“Let’s go to the bed.”
“I don’t mind doing it here.”
Diego gnawed at his nape again, making Roman frown slightly. He understood the excitement given the day, but if they did it standing like this, it would definitely interfere with tomorrow’s work.
Quickly organizing his thoughts, Roman grabbed Diego’s face with both hands. After briefly making eye contact, he leaned close to Diego’s ear and let out a low voice.
“Go to the bed. I’ll take as much as you want.”
The effect was excellent. Taking advantage of the other person’s momentary lapse, Roman easily slipped out of his embrace.
“…!”
But the leisure was short-lived. Before he could even take a few steps, Roman’s feet left the ground. Diego, who had picked him up like luggage, strode toward the bed, and as soon as he set him down on the sheets, he pressed their bodies together and kissed him again.
His large hands boldly caressed Roman’s body. Roman also eagerly stroked Diego’s broad back and shoulders, continuing the deep kiss.
“Mmph… haah…”
Moans flowed between his lips. Diego’s hand moved down and roughly kneaded Roman’s cock.
Only after quite some time had passed did their lips finally part, leaving a thread-like strand of saliva. While Roman caught his breath for a moment, Diego grabbed his pants and underwear and pulled them down in one motion. Spreading his exposed bare legs to the sides, he unhesitatingly took his already stiffly erect cock into his mouth.
“Haah… hnngh…!”
His firm waist trembled convulsively. Gripping Roman’s thighs tightly to prevent any escape, Diego sucked his cock like someone eating the most delicious food in the world.
He licked up the shaft with his tongue, sucked the roundly swollen glans, and Roman gasped as he listened to the deliberately made slurping sounds. His lean but firmly muscled abdomen rose and fell rapidly.
Then a certain scene caught his eye. Looking down at the head positioned between his legs, Roman let out a short laugh.
Judging by how he pounced the moment the door opened, he’d clearly reached his limit. He was nearly an hour late from the promised time, so Roman would have had nothing to say even if Diego had just shoved it in, yet here he was, diligently sucking away.
But he couldn’t just watch forever. As time passed, the one who would suffer more would ultimately be himself. During the Bloody Cycle, rational thought was impossible. The more Diego held back, the more mercilessly he would surely pound away.
“Stop and come up.”
When Roman slipped his hand through Diego’s hair and gently stroked it, Diego finally raised his head. Now it was his turn. Using his elbows to lift his upper body, Roman pushed Diego down and climbed on top of him. The moment he saw the bulge in his front, a muttering voice naturally flowed out.
“…Impressive.”
He wasn’t being sarcastic—he genuinely meant it. Straddling his thighs, when Roman pulled down the pants, a fully erect cock sprang out.
After wetting his dry lips once with his tongue, Roman wrapped his entire palm around Diego’s cock. He could see Diego’s eyebrows furrow slightly as he understood the intention, but Diego didn’t particularly impose any restrictions. There had been a time before when Diego entered too hastily and his hole had actually torn.
He stroked the sensitive glans with his thumb and cupped and kneaded the heavy scrotum in his hand. But Diego’s cock merely leaked sticky precum bit by bit, showing no signs of ejaculation. Eventually, Roman stopped moving, frowning.
‘…Should I use my mouth?’
Then, Diego suddenly sat up and wrapped one arm around Roman’s waist. With his other hand, he overlapped Roman’s hand gripping his cock and began shaking it rapidly.
Hot breath poured over his shoulder. Roman, who had been dazed for a moment, belatedly came to his senses and spoke.
“If you’re going to do this, wouldn’t it be better to do it yourself?”
“I don’t have the hobby of doing it alone when I have a partner.”
Even as he answered, Diego didn’t stop his hand. Soon, hot lips touched Roman’s neck area again.
“Hey, stop…”
“Haah… Roman…”
Both his clearly concentrated expression and the voice calling his name were quite different from usual. The moment he realized that fact, Roman could no longer stop him and let the strength leave his body.
Today was Diego’s Bloody Cycle. So unless it was too much of a strain, it was right to accommodate him. Just as Diego granted nearly everything Roman demanded around the 15th of every month.
Judging by his rough breathing, the end seemed to be approaching. Roman stroked what he held in his hand even faster. Shortly after, Diego finally stiffened his body and released a mass of pleasure.
Roman made a slightly overwhelmed expression. Not only was his hand drenched in bodily fluid, but despite having just ejaculated, Diego’s cock remained vigorous as ever.
He opened the nightstand drawer and took out the oil inside. Pouring it generously into his cupped palm, a dizzying sweet scent spread.
He moved his oil-coated hand behind him. But before it could even reach his private area, his vision suddenly spun and a soft sensation touched his back.
“I’ll do it for you.”
Diego swept the oil on Roman’s hand onto his own palm. The moment their eyes met, Roman unconsciously stiffened.
Heat filled the eyes he faced. It was an appearance he could absolutely never see normally, only visible at this moment.
Soon Roman smirked and licked his lips.
“If you’re going to do it, hurry up. I’m in a rush too.”
As soon as the words ended, Diego’s fingers dug into his body. The touch rummaging through his rear was not gentle even as a lie. It felt so hasty that Roman worried it might actually cause injury, but instead of stopping Diego, Roman spread his legs even wider. With his right hand, he gripped and kneaded his own erect cock.
Seeing that sight right before his eyes, Diego’s Adam’s apple bobbed greatly.
He couldn’t hold back any longer. Pulling out the fingers that had been probing inside, Diego aligned his cock, bulging with veins from the erection, against the wet hole. After a brief notice that he was going in, he pushed with force and began opening Roman’s body.
