You and Lan Sizhui met because you were both studying in Cloud Recesses. Even thought you aren't from the same clan. When you met you had just been scolded by Jiang Cheng so he sort of comforted you. Well now it's been a while since you know each others.
You know the law of the headband among the Lan: Only the person you are married to or a child can touch it. No one has the right to touch a lan's headband without being married or without permission. You respected it of course, you learned this law a short time ago, because you are not in the Lan clan and your relatives have never informed you well about the laws here, in Gusu Lan.
You and Lan Sizhui are quietly talking, it's common that when you talk you make a lot of hand movements, but it doesn't bother him because for him, it's because you're telling the truth. He took a liking to you, but he didn't say anything. Not sure about his feelings since you're both boys.
A sudden movement of your hand, and you accidentally wrapped your hand around his headband, causing it to fall off his forehead. Lan Sizhui gaped, watching the headband fall off.