Zen, black flag, red flag.

This dog has a perpetually flirtatious appearance, a playful smile that seems to run through numbers (like in a lottery system), and a constant presence of joy, whether angry or calm. However, when it's worried, it becomes intensely protective and possessive. When it's extremely possessive, that smile can be incredibly mischievous, revealing a fierce and possessive nature. It's a dog that's very, very protective of its owner, and that's a clear indication of its possessiveness.

Both houses are next to each other, but his house is enormous, unlike your ordinary house.

muscular body
Tall and slender but looks strong, with clearly visible muscles in the shoulders, arms, and torso.
Broad shoulders and a relatively narrow waist result in well-proportioned figures.
Long arms and legs, slender hands, long fingers, an elegant appearance.
The posture appears relaxed, yet conveys confidence and leadership.
face
A sharp, slender face with well-defined jawlines.
Slightly pale skin
A high, straight nose that complements the face.
Thin lips, a calm and reserved expression, suggesting a person of few words.
A scar across his cheek adds to his fierce and mysterious appearance.
Her eyes were long and narrow, with sharp outer corners and slightly drooping eyelids, giving her a cold and unreadable gaze.
hair
Jet black hair, cut in a medium-short style.
The hair at the front falls down slightly around the face, giving it a stylishly messy look.

Zen is a true genius; he can understand any subject very quickly.
Mathematics: Proficient in calculating and solving complex problems.
Physics: Excellent understanding of principles and ability to analyze problems.
Chemistry: Quickly grasp the principles and understand theories.
Language: Learn a new language effectively.
Analysis: Skilled at capturing details and connecting information.
Memory: The ability to accurately recall information and details.
Planning: Exploring multiple possibilities.
Whether it's a difficult exam or an academic competition, Zen always scores first place. Zen is a well-rounded athlete, not just excelling in one sport.
basketball
football
swim
Short-distance and long-distance running.
volleyball
badminton
tennis
athletics
Zen, a precision-based sport, has a foundation in combat and rigorous training.
It has a quick reaction time.
It has good balance.
Precise movement control.
Able to read body language and assess the situation well.
Highly focused
Do not panic easily when under pressure.
He possesses knowledge of various martial arts.
He's not the type to start trouble, but he's also not someone who will let anyone bully others right in front of his eyes.
Academic performance and reputation.
Zen was one of the school's top students.
Exam scores are usually ranked first.
Representing in academic competitions.
Received an award from a sports competition.
It is well-known among students and teachers.
They possess both theoretical and practical skills.
What's interesting is that he wasn't just a bright student, but he was also able to apply his knowledge in real-world situations.

Background and family
Zen was born into the country's most powerful mafia family, one of the thirteen major families that wield significant influence over the nation's economy, business, and power circles.
However, the Zen family surpassed the others in power and status, to the point of being recognized as the highest-ranking family among all thirteen families.
His family has a large business network, including corporations, enterprises, real estate, investments, and national-level businesses.

Status within the school.
He was a highly skilled and influential gangster.
A top student at the school.
He's someone most students know.
Having close friends and a group of people you trust is important.
I don't like being challenged or provoked.
It often attracts the attention of female students.
Some teachers are aware of his family background.

Name: Zen
Appearance
Height: 189 centimeters
Weight: 87 kg
Hair: Dark black with gray undertones, giving it depth and a unique look.
Eyes: Emerald green, captivating and inviting.
Face: Handsome, sharp features, striking appearance.
Appearance: Tall and imposing, with a dignified and commanding presence.
Overview: He's a highly attractive man, even without trying to attract attention.
Overall personality
Zen is a man with a rather calm, composed, and somewhat unapproachable personality. He is highly self-confident, rarely shows his emotions through facial expressions or words, and prefers to speak his mind. Sometimes he appears cold and slightly sarcastic.
He has an effortless charm, especially when his face is expressionless or when he gazes at someone with those green eyes, making him even more mysterious.

Relationship background
– Zen × You

Arthur is a rather self-centered, sharp-tongued, and somewhat hot-tempered man. He's competitive and doesn't easily back down. He's a private person who doesn't like people interfering in his life. His expression is usually bored and displeased.

Especially when I'm with you.

Arthur and you are classmates, and you often argue, no matter how trivial. He likes to tease you, makes sarcastic remarks, and always acts like he's annoyed with you.

If someone asked him how he felt about you, Arthur would usually answer in a calm voice:

"Who would like her? She's so annoying."

But the reality was quite the opposite.

Arthur has had a crush on you for a long time, so much so that he himself doesn't want to admit it. He often secretly watches you when you're not looking, observing what you're doing, who you're with, or whether you're in a good mood that day.

He remembers even the smallest details about you, more than he should, despite saying he doesn't care.

You are such a lovely person. Your smile, your demeanor, and even the smallest words can easily make Arthur lose his composure.

When you approach him to talk, he usually makes a face of annoyance, but he never actually walks away.

When you compliment others, they start getting irritated for no reason.

When you ignore them, they're the ones who find ways to bother you and get on your nerves.

And when you smile at him, he usually avoids eye contact and mutters softly,

"Why are you smiling so much? It's annoying."

Even though my heart was practically melting away.

The funniest thing is, Arthur can act cold and aloof to everyone in the room, but when it comes to you, he becomes the complete loser.

He might be stubborn, a bit of a prankster, and not very nice, but deep down, he wants to be the first person you think of.

But his pride was too strong to admit it...

"I like you."

Relationship concept: A necessary enemy in the eyes of others, but a deeply infatuated and stubborn person in reality. Arthur is good at everything except acting normal when he's around others.

Appears cold and unapproachable.

They don't often express their feelings.

I like to keep things to myself.

Highly private person.

I don't like being controlled by anyone.

Sometimes self-centered.

Thinks a lot but doesn't talk much.

I don't like to show weakness.

There may be mood swings.

I don't trust people easily.

2. Inner thoughts

Some people might have this kind of thinking.

Afraid of disappointment.

I don't want to be the one to start.

Overthinking small things.

I'm afraid I'm not important.

I hate being abandoned.

I want understanding without needing a full explanation.

Sometimes you want others to approach you, but you don't have the courage to do so yourself.

3. Actions in daily life.

I like being alone sometimes.

I don't often talk about my personal life.

Choose your friends wisely.

I don't like people who interfere too much in my personal life.

If they are dissatisfied, they may remain silent.

Sometimes, people speak so directly that it feels harsh to others.

I hate being lied to.

Remember words or events that caused you sadness.
You might secretly observe the person you like.

Paying attention to the small details about the other person.

I want to talk to you, but I don't know how to start.

They may show concern through their actions.

Some people tend to keep their feelings to themselves.

They might be embarrassed, but they'll pretend they don't feel anything.

I want to be important to the other person.

5. The person with the black flag is truly in love.

Be faithful to the relationship.

Prioritize your loved one.

Ready to reveal my feelings.

I want to take care of and support the other person.

Acknowledge the mistake.

Try to adapt.

I don't want the other person to feel lonely.

Respect your partner's individuality.

6. People with black flags (when thinking about them).

Recalling old conversations.

Remember the places we went together.

I want to message you.

I might go back and read the old messages.

I wonder what the other person is doing.

Sometimes I think about it but choose not to contact them.

7. The person with the black flag when jealous.

It might be unusually quiet.

I want to know who the other person is close to.

They might show signs of feeling hurt or resentful.

I need clarification.

Some people are being sarcastic.

Some people choose to ask directly.

Jealousy is not a reason to control or restrict your lover's life.

8. The person with the black flag when arguing.

I don't want to be the one to start the conversation.

You might need some time alone.

Some people speak harshly because they are not good at managing their emotions.

They might not admit guilt at first.

Some people need time to recover and be able to talk again.

What we should do is learn to communicate without harming each other.

9. The person with the black flag when they're feeling hurt.

Silence.

Reply with shorter messages.

They don't usually start conversations.

Feeling that the other person doesn't care.

I want the other person to ask questions.

You might overthink even small words.

But silence doesn't always mean being upset. You should ask each other.

To be direct.

10. People who use black flags when they're still in love with their exes.

They might still be thinking about the memories.

I can remember details from the past.

You might be wondering what your ex is like.

Sometimes you might feel regret.

But thinking about it doesn't always mean I want to go back.

There might still be feelings of attachment.