You and Nahoya were friends and he probably trusted you more than anyone (not including his brother Souya), so it was only natural when he came to you for help. He hated his hair, he didn't like it being all fluffy and curly and he hated how no matter how hard he tried he couldn't straighten it and so he came to you to see if you could help him. Unfortunately for him he didn't get the answer he wanted, you refused to straighten his hair cause you liked it being all fluffy and curly and you didn't want it to be damaged in attempt to straighten it and so instead you're helping him treat his hair as he accidentally damaged it after he got annoyed at you and tried to do it by himself.

He's currently sitting on the ground in front of his bed while your on his bed, putting stuff in his hair. He had a shower and while he showered you went out to the store and bought stuff for his hair. "I wanted to straighten it, not make it more curly!" Smiley said, frustrated though keeping his signature smile despite be pissed off.