Scott D. Ren

"Don't you dare insult Rio-onichan! Even though he may be a pirate and may be a criminal, he's still my older brother! Take back what you said or else! " Scott.D.Ren also known as the Boy Genius is a Marine Captain and one of the deuteragonists of One World. He is the biological younger brother of Scott.D.Rio, the adopted brother of Scott.Ariana, and the son of both Scott.D.Keith and Yukinari.

Unlike his older brother who became a wanted criminal and pirate, Ren is aligned with the Marines and known witihn thier ranks as a child genius, much like his father was when he was his age.

Before the time skip, Ren was still studying in the Marines and recieved great tutaleage because of his parents well known reputation. Because of this, he was very spoiled and soft hearted, not experiencing the rough and hard life that his brother did.

Due to his naturally high intelligence and aptitude for learning things at a very quick pace, he became a Marine Captain at the age of 15.

Ren actually respects and admires his older brother depsite knowing that they are on opposite sides and will most likely one day fight each other.

When he was younger, he had only met his brother once when he was around five years of age so he didn't quite remember how he looked like, but he remembered the kindess and warmth his brother emitted.

Ren is employed with the Marines along with his adopted sister Ariana, so naturally they are very close. Ariana is the one who usally looks after Ren as both of their parents are highly active and do not have the time to do so. Ren loves not only his brother but his sister dearly and acts as if she was his mother.

Post Timeskip
R en is a short, cute, and young teen who looks similiar to his brother and father but has an entirely different hairstyle. He has red and dark hair but instead of having it hang out like Rio does, he ties the back of it down with a band.

Before the time skip, he was usually seen wearing a blue academy suit that had yellow stripes. Along with this, he had a pair of glasses on his face that he usually kept on when he was reading books while he was walking. Unlike his brother, Ren dresses in formal clothing quite frequently as his father taught him that men should always look good to impress their superiors.

Just like his father and his older brother, Ren seems to be quite handsome even for his age, and is constanstly in company of girls who think he's cute. Some of the marines even note that his father Keith was extremely fortunate that his genes were gifted with the power to make such good looking children. His adopted sister Ariana is always scaring off girls who seem to "stalk" him as they want to get to know him better. This fact is even taken up to eleven after the two year time skip, when he has matured and has also gained a few muscles to go along with his good looks.

One of Ren's most peculiar traits that many people have noticed and wondered about is the small linear scar located on his left cheek. Many people wonder if it a scar left by his father as he was known for his rigorous training and dangerous assignments that he gave to rookie marines.

Post Time Skip
After the time skip and now that Ren has become a captain, he has upgraded his academy clothing and now wears a black and yellow japanese martial arts uniform. Along with this, he wears black flip shoes that reveal the skin of his feet.

Along with his clothing, it seems that Ren has gained a few inches in height. Filling his clothing, Ren has gained a few muscles in the process, most likely from the intense training his father put him in during the time skip.

Personality
Ren is a kind hearted young boy, with a very optomistic outlook in life. He always assumes that every situation has two sides, a wrong choice and a bad choice and he feels that those who make a bad choice, can always come back to the hood. Though he is barely a teenager, Ren shows a maturity, well mannered speech, and intellect far beyond his years that is constantly amazing his superiors. On a emotional level however, Ren is still considered a child as since he did spent most of his lifetime in school studing, he is still very soft and childish, almost bursting out into teras if he is called a baby.

Ren's knowledge of the world astounds not only his adopted sister, parents, and even superiors, it even asounds a few high ranking marines as well, as a litle boy was able to come up with an almost flawless war strategy at such a young age. People still find it hard to believe that such an intelligent, polite, but soft hearted child could be even remotely related to his older brother, who is the complete opposite of him. Needless to say, if there's a trait that they both share in common with each other, it is their strong willed hearts and devotion to their jobs.

 Interestingly enough, Ren doesn't just seem to have the knowledge as an adult, he also likes the same drinks and food as them. Ariana usually has to drag Negi away whenever he is snacking on rice crackers or when he is trying to drink coffee. Although, after trying coffee the first time, he calls it muddy watter and has sworn never to drink it again, showing his distaste for bland things; a trait he shares with his brother.

A trait that he also shares with his brother is the fact that he pushes himself incredibly too hard. In his case, Ren doesn't seem to notice the amount of time and effor he does into studying and learning about Marine HQ. He spends mroe time studying than actually sleeping or eating that his sister once caught him dead asleep in the middle of an important meeting, as he studied from the moment he woke up all the way till the moment he slept, not giving his brain any time to rest and absorb the knowledge. It took some good scolding from his sister to let him know what it truly meant to study.

After the time skip, Ren has displayed a newfound personality that he never showed before. Know, he acts much more similiar to his brother albeit way more politely and well mannered, but still the same stubborness but also the same way they can command and lead people. Now that he has become a Captain, Ren is high ranked enough to leave Marine HQ and set sail inside the Grand Line. His father intentions were to have him become high ranked enough so that he could be transferred to the New World, but instead his father left his post and came to train Ren and his sister for two years, toughining him up in the process.

Abilities and Powers
Hand to Hand Combat

Despite being in a family full of people with monstrous strength, Ren didn't seem to inherit his father's and brother's physical strength, but instead learned their technique and skill at fighting. Even though Ren does not possess the raw strength his brother does, he is almost as dangerous as him after the training he recieved. His father taught him advanced martial arts stances, techniques, and counters that were have said to have come from the Mahora Tribe that he did not teach his brother, as he felt that he could become powerful without them.

Ren's hand to hand combat was clearly shown to be ameture when he first started training along with his sister, but after two hard years of applying the theory of what he learned into his training, he became a much more gifted fighter in a few months, and by the time two years had passed, he was disarming and defeating Commodore ranked sparring partners.

Physical Strength
One of things that is most peculiar about Ren is that he does not have the same demonic strength as his brother and mother, and opted to learn and fight more like his mother and sister who both rely on speed and technique. However, he does truly possess a fraction of their strength as evidenced when he stopped a captain's punch that was aimed at him with a finger, albeit he was extremely pissed off because he insulted his older brother. Agility

Ren's agility aptitude for speed and quickness far outweights his physical strength. Keith, his father noticed this and opted to train Ren more speed based techniuqes, which originated from the fighting style of ranked marines; Rokushki.

Haki
Interestingly enough, Ren did not possess or was shown to possess any of the three types of Haki pretime skip, but it seems that after his training he has a good grasp of the two basic ones. Whether he has the third is still uncomfirmed.

Kenbunshoku Haki: Color of Observation  - It was revealed that Ren possess Kenbushoku Haki.

Busōshoku Haki: Color of Armaments  -  It was revealed that Ren possess Busoshoku Haki.

Haōshoku Haki: Color of the Conquering King  - Uncomfirmed

Relationships
Family

Scott.D.Rio
Despite all of Rio's actions in the past year that have amounted to the World Government treating him as a criminal, Ren doesn't hold and hatred or dissapointment towards him. Most likely, this sterns from his young age so Ren thinks that Rio has just walked down the wrong path and just needs to be convinced to be a marine.

Regardless, Ren is quite protective of his older brother and idolizes him to the point that he challenged a Marine Captain who spoke ill about him. Ariana, who had to apologize to that man has told him several times not to idolize a criminal, but Ren never takes her words seriously and continues doing so. He thinks that Rio is cool, strong, and is the best older brother ever, which has made Ren address Rio as "Oni chan". Ren desperately wants to meet Rio once again not just because he's only seen him once in his life, but also because he wants to see for himself how strong he is, as his father has constantly told him that he is way stronger than he used to be when he was his age, even without his devil fruit.

Scott.D.Keith
Ren seems to treat his father with the utmost respect and has never once talked back to him. Keith is quite suprised to find that his son is so well mannered, compared to his first son who is the complete opposite of him.

Even though Keith did not spend too much time with him, Ren truly thinks that his father is never wrong and believes that work is work and if you're busy, it must mean you're doing something very important. Before the time skip, Ren begged his father to train him to become strong just like Rio did, and so he spent the next two years with his father and sister, training on his off days in a secret Marine facility. Whether their relationship has gotten closer because of the time spent together isn't confirmed.

Scott.Ariana
Ren adopted sister who acted just a mother towards him, was the one who was always looking after him. Naturally, the two share a very close bond because of it and are usually seen in each other's company when their not by themselves.

Ariana constantly tells Rio that he needs to stop idolizing his older brother and that regardless of their relation, criminals are criminals who need to be brought into justice. Depsite her warning, Ren has never and will never consider her words as true and he believes that Rio was just lead down the wrong path and can still be saved.

Yukinari
Ren hasn't spent too much time with his mother, so he doesn't know alot about her, but he knows that his mother is a very kind and warm hearted woman. Whenever they do have an oppurtunity to meet, she constantly hugs and squeezes him, earning a small blush that escapes his cheeks as he thinks his mother smells heavenly, just like his sister.

Ren actually acts more like mother when she was younger, in which he was quiet, well mannered, and was always studying every day in the week. This has earned him quite a few glares from his sister who believes he needs to stop trying so hard and relax and take life a little more easier.