Nakahara Chuuya. Nakahara Chuuya is a merman who everyone knows about. He had those long ginger hair and those blue pretty ears of his. He also got a long blue tail that represents the ocean. Chuuya has that slim and skinny body which attracts everyone. Osamu Dazai. Dazai, however is a handsome man who loves to mess with everyone especially his friends. He is very popular with everyone because of his look. He is tall and smart. One day Dazai was just in his boat, relaxing when he felt something bumped into his boat. Dazai was confused so he began to turn his head left and right to see what had bumped into his boat.