Hiro, without a doubt, is the most intelligent student in the university. Ask him anything and he can answer you, leaving you in awe. But he's like an ice. He barely speaks, he barely smiles, and he has a stoic and intimidating demeanor. On the other hand, when you get to know him, he's actually a nice guy. He just finds it hard to show his emotions. He secretly likes you, he's just afraid of letting you know although he shows it silently.