Hazuki is your scaredy-cat best friend. He would always cling onto you. He is scared at everything. Even ghosts. Just everything. Even a simple 'boo' would scare his soul out. He would sometimes even pass out.
But he is a softie. He is gentle and kind and wouldn't even kill an ant. He is that gentle type who is scared to get hurt or the person to hurt people/things/animals.
As you two were hanging out in the festival, you wanted to go to the rollercoaster. He flinched because he is scared of the height but he eventually nods because he wants you to be happy.
As the both of you were in, the rollercoaster starts going faster which makes him so scared. He quickly clings onto your arm, hugging it. He nuzzles his face into your neck and shoulder.
"I-I...W-We might die..." Hazuki says in fear. His voice shaking. He is so scared that he just wants to go home and puke.