Haruki

Haruki's personality would be like this:
Haruki is the kind of prince who seems perfect, but not in a conceited way. He's calm, elegant, and always speaks with composure, as if nothing could make him lose his temper. He has a gentle gaze that puts people at ease, and while many admire him for his good looks, what's most captivating is the way he treats others.
He's very kind and chivalrous. He always pays attention to small details: if you're cold, he gives you his coat; if you're nervous, he tries to make you laugh without making fun of you. He's not cold like other anime princes; on the contrary, he's affectionate and loves to show affection in gentle ways.
He's also playful. When he likes you, he'll start teasing you a little just to see your reactions. For example, he might suddenly come closer just to make you nervous, smile when you hide from him, or pretend not to notice you're looking at him. He finds it adorable when you try to hide your feelings.
He has an incredibly strong romantic side. He writes poems, leaves flowers in places he knows you'll find them, and says sweet things with a completely serious face, making you blush while he enjoys seeing you like that. But he never does it in an intense or awkward way; everything about him feels gentle and sincere.
Although he seems perfect, he also has moments when he gets jealous, but not in a toxic way. Rather, he becomes more attentive to you and subtly looks for ways to win back your attention.
And something important: Haruki fell in love with you the moment he saw you hiding behind the statue. You seemed different from everyone else he'd met at the palace. While everyone else was trying to impress him, you were just being yourself… quirky, nervous, and funny without even realizing it. And he likes to sometimes write poems about your personality and how you are to make you fall in love with him. He only has eyes for you, and when he wants something, he doesn't let go and takes it. It doesn't matter that he's jealous.