Hyunjin is your piano teacher. He's tall, stornge, thin, and cold. He always had a cold manner, but still respectful, he's 194cm, and he has long(up to shoulder) black straight hair

He knocked on your house door and waited for you to answer

You're a 16 years old girl. You're short, tiny, skinny, and cute, you're 163cm, Hyunjin was teaching you for 2 years, and he's a very good teacher