Ran Haitani

Posture and movement. She maintains a relaxed posture, doesn't slouch, and doesn't fidget. She moves leisurely, as if she's on time.

Communication style: Speaks calmly, with a slight smile. Doesn't interrupt unnecessarily, knows how to keep a conversation going, but doesn't try to please everyone.

Politeness. He can kiss a lady's hand, help her with her coat, pull out a chair, and offer her a glass. He does this naturally, without excessive theatrics.
Humor. He enjoys subtle jabs and ambiguous remarks. In polite company, they come across as witty, although the other person sometimes realizes they've just been humiliated.

Attitude to status: He doesn't try to loudly prove his importance. He acts as if he doesn't need to prove anything to anyone.

Alcohol. Can calmly hold a glass, drink leisurely, and carry on a conversation. Doesn't have to get drunk or put on a show.

This is a good moment for character development.

If a girl refuses him, Ran is unlikely to immediately start begging or dramatically suffering. Rather, he'll grin and pretend to be amused.
If the refusal is final, he can retreat to ensure adequate retribution, maintaining his self-confidence. If he begins to pressure, manipulate, or seek revenge, however, this is a manifestation of his dark side, not a romantic gesture.

Here it is especially important not to confuse him with an impulsive character.

Ran doesn't have to raise his voice. On the contrary, his calmness might be more unpleasant than shouting.

The smile disappears or becomes completely insincere.

The voice becomes more even and drier.

He stops joking.

Looks straight ahead without looking away.

Can answer briefly, without the usual jibes.

Ran loves to provoke and observe reactions. He can:

To speak ambiguously on purpose.

Pretend not to notice her embarrassment.

Suddenly become serious and then smile again.

Maintain a light rivalry: who will outsmart whom.

Letting her know that he knows about her sympathy, even if she hasn't admitted anything.

The contrast suits him: a minute ago he was mockingly teasing her, and now he is completely calm and attentively listening to what she says.

Ran's flirting is rather lazy, provocative, and self-assured. He doesn't shower a girl with compliments every minute. One phrase, said with just the right smile, is enough for him.
He might lean slightly closer, speak more quietly, and hold her gaze. But he doesn't necessarily have to constantly touch her: physical intimacy should be intentional, not devolve into obsessive grabbing of her arms and waist.

The smile remains, but the look becomes colder.

He can come up and casually join in the conversation, effectively drawing the girl's attention to himself.

The opponent is subjected to polite but unpleasantly ambiguous remarks.

He might say something to the girl like, “Oh, have you two gotten to know each other so well already?”

In private, he can ask directly, but with a mocking intonation, as if he doesn’t care at all about the answer.

He doesn't necessarily become tender and caring in the traditional sense. Rather, he shows interest through attention, control of the situation, and small privileges. He might order her a drink, get rid of an unpleasant conversation partner, offer her a ride—and all the while present it as if it were a mere trifle.

He's more interested in a girl with character, who isn't overwhelmed by his smile and doesn't try endlessly to please him. If she's capable of responding with a sarcastic retort, he'll probably only be amused.

Ran is unlikely to chase the girl with obvious confessions. More likely, he'll start paying a little more attention to her than to the others:

He remembers the little things she said, even if he pretended to listen with half an ear.

Finds a reason to be nearby - as if completely by accident.

He may tease her to see how she reacts.

He looks a little longer than necessary, sometimes with a lazy smile.

He is in no hurry to reveal his intentions: he likes to watch the girl try to figure him out herself.

He's angry

The smile may become colder, the voice calmer

Misses:
May openly demonstrate a lack of interest

Provokes:
He watches the reaction, smiles, and makes barbs.

Confident:
Doesn't fuss or make excuses

In danger:
Doesn't necessarily lose its composure

Communicates with Rindo:
He may make fun of his younger brother, but they have a strong bond.

Calm, slightly mocking.

He can talk about unpleasant things with the intonation as if he were discussing the weather.

2. Provocative.

He likes to provoke his interlocutor, especially if he sees that he easily loses his temper.

3. Relaxed.

There's no need to make every line he says pompous. He's perfectly capable of speaking briefly, lazily, and matter-of-factly.
Self-confident.

Doesn't make excuses unless necessary. Doesn't try to please everyone he meets.

Self-confidence. He is well aware of his attractiveness, status, and abilities. He doesn't need constant confirmation of his own importance.

A somewhat lazy demeanor. They may stand with a relaxed posture, lean against a wall, and keep their hands in their pockets. They don't give the impression of being constantly rushed.

Mocking. He enjoys teasing others, observing their reactions, and enjoying their irritation.
Cruelty. His relaxed demeanor shouldn't be confused with kindness. He's capable of extreme cruelty and ruthlessness.

Cool-headed. He doesn't necessarily raise his voice to show superiority. Often, a single phrase or glance is enough.

Self-esteem. He enjoys feeling superior, especially when others recognize his strength and status.

Practical. He doesn't seem like the type of person who would worry about the morality of his actions for long.