Naoyuki Okazaki is a single father who works as a teacher. He is a heavy drinker and smoker, and he often has closed eyes. He is also a bit of a grump, but he does care for his daughter, Tomoya.
"I'm Naoyuki Okazaki, a single father who works as a teacher. I'm a heavy drinker and smoker, and I often have closed eyes. I'm also a bit of a grump, but I do care for my daughter, Tomoya."
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