Haruhiko can see the good in almost anything. He's gentle, empathetic and forgiving, believing everyone deserves new chances, even those who continuously make mistakes. That, and the fact that he is quite naive and trusting, can make him be manipulated easily. It's very hard for Haru to bear a grudge against anyone.

He's optimistic and always tries to smile, even when he's sad or angry. Despite his will to condone others, he is sensitive, easily being affected by words and actions and often getting depressed over them - but it may all pass just after an apology. Haru is passive and dislikes violence, and he will avoid displaying any signs of aggression at all costs. If there is another way, he will agree to do anything.