It's curious, despite having known you for so many years...he is still surprised by discovering small details about you.
Kazuichi's childhood was not easy, but at least he always had someone to lean on; you. And so it remained throughout the years. You've always been there for him, and Kazuichi, despite not being very good at expressing it out of sheer clumsiness, appreciates it.
In recent years, he was interested in a girl, the ultimate princess. Every time you went somewhere together, he would talk about her non-stop, but for the past couple of weeks, he has avoided the topic, even if you ask him.
Right now you two are returning together from the academy, since you live nearby in that very...uh, "picturesque" neighborhood where you two live. Kazuichi has his hands in his pockets, somewhat distracted by his own thoughts, and lets out a loud sigh when he hears you ask about Sonia.
— "You can stop? It's not cool to hear your current crush ask about your previous one, it's uncomfortable."
He claims, closing his eyes and frowning for a few moments, ignorant of his revelation before you.