(In the anime despite it being 1997, Smartphones are a thing so let's go with Tech being more advanced than it should be.)
As Ryomen meditated he made sure to train his Cursed Energy control. Sukuna was the strongest and probably the best Cursed Energy user of JJK because of his many years of experience. He knew the inner workings of Cursed Energy better than any other and he had the most Cursed Energy.
Yuta who had more Cursed Energy than Gojo, stated that Sukuna had doubled his reserves. That all ceased to matter with the Six Eyes as Gojo could use infinitely close to zero Cursed Energy to use a technique.
Sukuna though was a master at Cursed Energy control so he could also use very little Cursed Energy to use his Technique, just not as good as a Six Eyes user. It was also why the Ten Shadows went from a mediocre Cursed Technique in the hands of Megumi, to a lethal technique with Sukuna's Cursed Energy.
'Six Eyes would have been nice, but I am happy with Megumi's Cursed Technique.'
5 hours passed since he started meditating and consumed part of the Crow Devil's Flesh. He had to do so to process the Negative Energy he got from eating the Devil which was extremely similar to Cursed Energy.
It allowed his Cursed Energy reserves to grow larger and more potent. He had yet to face any dangerous Devils, so he had yet to enter the zone of a Black Flash, but it was bound to happen when he faced some more dangerous Devils.
While he had eaten many weaker Devils, he hadn't gained their abilities. He was hoping to learn that as it would make him even more powerful in this dangerous world. Or maybe he just hadn't figured it out, just yet. When he stopped training his Cursed Energy he looked at his watch on his left hand.
It had been 1 PM when he and Delta were out hunting, and he trained for five hours making it 6 PM. He could go out as he wasn't a big fan of wasting time when Makima was around.
When he stood up from his bed he placed a hand on the necklace around his neck. It was a small lump of 6 bullet flesh pieces, parts of the Gun Devil. When the Gun Devil disaster occurred, he had been 7 years old. His Cursed Technique activated on his 4th birthday on September 1st, 1981 while the Gun Devil attack occurred on November 18th, 1984.
It had given him three years of training time to acclimate to the Ten Shadows, Dismantle, and Cleave. When the Gun Devil disaster occurred, he had not been effected so he and Delta frantically searched for shed pieces of the Gun Devil.
Thanks to his Cursed Energy sensory abillities, Delta's sense of smell, and the Divine Dogs, he tracked down six pieces that he wore around his neck all the time. He was planning to use more of these to track down Devils who consumed pieces of the Gun Devil to eat it himself.
Curses got stronger by eating Sukuna's fingers, and Sukuna got stronger by eating his mummified Corpse than it stood to reason he would get stronger by eating pieces of the Gun Devil. If needed he could always eat his necklace if he needed an emergency power-up.
If he wanted to measure up to Chainsaw Man, The Four Horsemen, and the Primordial Devils he had to be more than Sukuna. He smiled to himself as he made his way out to the living room. There he saw Delta and the dogs sitting on the floor watching a cooking show.
He saw them follow the food with empty eyes which made him shake his head. He walked over to Delta and began to ruffle her head and fluffy ears. She closed her eyes as she liked getting petted by him.
"You're adorable, but so stupid."
Her large tail was wagging uncontrollably at how happy she was.
"Boss is the best."
He sat down next to her which she took advantage of. She lay her head on his lap looking up at him. She raised her hands with a smile.
"Belly rubs."
He did as she asked and he started playing with her toned stomach. She wasn't fluffy in her human form, but her Devil Form was far too large. She smiled as she was very ticklish.
When he stopped rubbing her belly she sat up and dragged him into her arms. She had a big grin on her face as at the moment she was way bigger than him.
"Hey Delta, want to go to the park with the boys?"
"PARK!"
Instantly Delta and the five dogs started running around like mindless chickens. He enjoyed the ruckus because he wasn't Sukuna's hating ass. However, it seemed they would have to change their plans as Delta froze and began sniffing the air. She started growling like a beast as she could smell approaching Devil Hunters.
"Boss."
Ryomen sighed as he could sense them.
"More recruiting."
He walked toward the door and without waiting he opened it. Outside were the same three Devil Hunters he knew. They also brought another guy who was wearing a black suit but looked like a nerd. A lawyer guy it seemed.
"The fuck do you guys want?"
Delta walked out with him and stood behind him with squinted eyes. The lawyer-looking Devil Hunter pushed his glasses up.
"Mr, Haruo, I am Komuro Tatsui, with The National Devil Extermination Public Safety Commission. I am with the law firm used by the Commission. Do you have time to talk?"
"Who is Haruo? That ain't my name."
Tatsui pushed his glasses up again.
"I did hear you go by Ryomen Sukuna, yes?"
Sukuna crossed his arms and nodded.
"I do. Anyway, make it quick since I don't want to deal with suits more than I have to."
"I will cut to the point, the Public Safety Commission wants to extend to you a job. You have refused multiple times to switch from the Private Sector, but we seek to make it worth your while."
He sighed as no matter what he wasn't joining Makima's pet squad. Not at all, especially not when he was a tasty target to the Devils. Makima would want to control him and he would respond by jumping her with Big Raga.
Plus, the Positive Energy of RCT was a lethal poison to Devils and it hurt them like Holy Energy did Demons.
"The answer is still no. I won't ever work for the government and be subject to their rules and shit. What do I need you a lot for when I already do my fair share of Devil Hunting? The answer is and will always be a giant no."
He grabbed Delta's hand and pulled her back inside the house. Just as he was about to close the door, Tatsui spoke up.
"In that case, we can offer you a lump sum for your Devil. The Wolf Devil's abillities are not well understood, but careful examination can determine its use in Devil Contracts. How does 385,185,000.00 Yen(2.5 Million Dollars) sound?"
He froze in place at how angry he was. Delta from behind him started reverting to her Devil Form in pure rage. Black and Red fur began growing from her limbs, and her teeth began enlarging
"NO ONE IS TAKING ME FROM MY MASTER!"
The flesh on her face started tearing open as two more sets of eyes grew, and her arms began snapping as they began growing larger. She bent her back as she began growing larger.
Seeing that the Devil Hunters backed away they started making a few hand signs ready to call their Devil Contracts. Ryomen extended his hands and got ready to use his Cursed Technique, Cursed Energy flowing through his body. Delta paused her transformation halfway now looking like the in-between a Werewolf and Human.
She crouched on all fours next to him waiting for him to give the signal. Things grew tense as Ryomen squinted his eyes and he continued glowing in dark blue Cursed Energy.
"Kumoru Tatsui, my answer to you is a resounding fuck you. The answer is no, and if you don't get the fuck off my property, I will leave you as a limbless blob."
Ryomen could tell this lawyer wasn't a Devil Hunter and was just a suit. He couldn't do anything and neither could the three Devil Hunters that came from the Public Safety Commission.
Tatsui backed away as he started feeling nervous at having Delta poised to attack him and Ryomen who could at any moment slash him in two.
"Very well, if you change your mind, you can-"
He tried to give him a card, which he didn't even bother to accept. He grabbed Delta by her tail and dragged her inside who yelped as he did. He slammed the door behind him and then let go of her fluffy tail.
He kneeled and held her by her half-transformed face.
"Don't worry, I ain't giving you away. Calm down, ok?"
She nodded taking a deep breath as she started reverting. Her fur began to be retracted, her two extra pairs of eyes did the same and her limbs began shrinking until she was back to normal.
"Master, I won't let them take me from you."
"And I won't let them take you, so don't worry about it."
He stood up and looked out the door as he could sense the Devil Hunters leaving.
'Makima.'
He knew he and Makima were not going to get along as he wanted to be his own Master. Not controlled by any Government as in this world Nukes didn't exist the Nuclear Weapon's Devil was eaten by Chainsaw Man.
Same with the AIDS Devil, Arnolone Syndrome Devil, Light of a Star That Breaks Children's Minds Devil, Mount Hio Eruption Devil, Nazi Devil, World War II Devil, and Sixth Sense Devil.
Many dangerous and powerful Devils that had been eaten and erased from people's minds. He knew what they were, and without Nukes, one of the biggest dangers to his life was gone.
He just had to deal with Devils which he could fight. He clenched his fist as it was time to get training again.
"Delta, get ready to go out. We are going to hunt down more Devils. We need to get stronger and faster."
"Right, do we go now?"
"No, go get changed, your clothes are a mess."
She looked down and saw her shirt was ripped open. Part of her breasts were exposed.
"Oh, right. That is bad."
She went to get changed which made him shake his head. In the meantime, he clenched his fist as he started circulating his Cursed Energy. When Delta returned, she was dressed properly again and with that, they both left the house again to hunt down more Devils.
---
While Ryomen and Delta expanded their area of hunting, Kamuro Tatsui and the three Devil Hunters who went to meet with him, returned to the Public Safety Bureau. The first thing they did was to go to Makima's office who was the one to send them.
Before entering her office, Tatsui knocked on the door.
"Miss Makima, we are back."
"Enter."
When they walked inside, the first thing they saw was Makima sitting at her desk working on a pile of paperwork.
"What did he say?"
She didn't look up, but when Tatsui cleared his voice and hesitated she looked up. The many rings in her eyes seemed to glow a bit as while she had a smile, it seemed empty.
"He refused us. The boy nearly attacked me when I offered him money to buy his Devil."
"I see, he is an interesting one. For now, leave him be. His kind don't take kindly to pressure, but I am sure in time he will come around."
"Right."
When Tatsui left the three Devil Hunters were going to follow she called out to the female.
"Umeko, you are the one who has met with him the most. What do you think of him? How did you meet him?"
Kaneko Umeko was her full name, and she had known Ryomen Sukuna for 7 years since he became a Devil Hunter.
"If you want to ask me to describe Ryomen Sukuna, I will call him an asshole. He does what he wants, when he wants, and if you tell him other he will curse you out or beat you up. I still remember how he saved the Wolf Devil who killed a man for doing his job.
While she was on a run, some newbie Private Devil Hunter was after her, and when he found out he gave her a vicious beating and then took the Wolf Devil in. Now, he is always walking around with her tame as a pup around him.
It is annoying and the worst thing is that he can back up his bravado."
Makima considered that.
"I see. I will take that into mind, you are dismissed."
When they were gone, she pulled up her smartphone and Sukuna's social media. He had it named as King_of_Curses1234, and it was just a bunch of selfies, workout shots, or pictures of Delta or his dogs in cosplay. It did give him extra income and he wasn't giving out anything secret.
Makima smiled when she looked at the five dogs dressed in Ninja Turtles and Master Splinter. Makima liked dogs, just like she liked humans. She was a follower of his Social Media so she pulled up his most recent picture.
It was him, Delta, and his dogs at a swimming pool.
'How nice, let's meet someday.'
She put her phone away and got back to work. As for Sukuna and Delta, he was reminded that he needed a car or learn how to fly because walking on foot was not going to cut it anymore.
'Sukuna driving a car, how stupid.'
He smiled to himself as he wasn't pressed at the moment, but buying a vehicle was going to be important soon.