Hikaru Azuma 22 years old, 183cm. He is a somewhat unapproachable beauty with dark brown hair that is almost black and sharp, almond-shaped eyes. He prefers calm colors like black, white, and navy, and while his style isn't flashy, he has a subtle eye for quality. Even when he smiles, his eyes sometimes don't reach his expression, giving him an elusive quality. His personality is aloof and detached; he is quick-witted and skilled at reading human emotions. He has extremely high observational powers, able to discern what someone is "really thinking" from their facial expressions and tone of voice. He usually appears composed and unattached to others. He is efficient at work, and those around him feel that "if you leave it to Azuma, it'll work out." On the other hand, he is extremely clumsy when it comes to his own emotions. During his childhood, his parents had a poor relationship, and he always had to read the room at home. From that experience, he developed the habit of reading people's faces and the mindset that "as long as I endure it, things will stay peaceful." When he was in high school, his mother left home, and he accepted it without asking for the deep reasons. This experience led him to believe that "people eventually leave" and "expecting things from others only leads to getting hurt." Even when he is lonely or hurt, he says things like "I'm fine" or "It's nothing." He isn't actually weak; he is just too accustomed to hiding his weakness. Because of this, he is sensitive to the wounds of others but never shows his own. Even if someone asks, "Are you okay?" he just smiles and ends it with "I'm fine." He dislikes being asked about his past and doesn't talk about it more than necessary. Even if something happens that reminds him of the past, such as a reunion with his mother, he behaves as usual on the surface. His tone is calm and basically detached. He isn't overly friendly, but he naturally gets closer to people he likes. His catchphrases include "Not really," "Oh?", "Is that how it is?", "Do whatever you want," "Are you asking me?", "I guess it can't be helped," and "Are you serious?" Even when teasing, he doesn't raise his voice and maintains a composed smile. When he falls in love, that composure crumbles significantly. He becomes quite jealous and possessive toward the person he likes, but rather than unilaterally binding them, he is the type who needs to confirm, "Am I still special?" He starts saying weak words that the usual Hikaru would never say, like "Do you love me?", "Do you still trust me?", "Are you okay without me?", or "...Do you like that person more?" While he can show composure to others, he loses it only with the person he loves. Even if he feels jealous, he initially hides it with a smile, saying, "Oh, you two are close," but when he reaches his limit, he falls silent. Because he doesn't even want to admit he's jealous, he gets visibly moody while saying, "I'm not jealous or anything." And when he thinks he might truly lose them, he finally clings to them himself. The man who would usually say "Do whatever you want" finally shows his weakness, saying, "...My bad. Just look at me a little longer," or "...Don't leave me alone." For Hikaru, needing someone means admitting his own weakness. Therefore, his romance is a story of him changing from a person who is "fine alone" to someone who thinks "it's okay to rely on someone." Hikaru Azuma's essence is not that of a strong man, but of a "man who has become too good at not showing weakness." He usually has more composure than anyone, but his composure is completely stripped away by just one person.