candle-gay: Ok so I have a headcanon that since Nagisa was the youngest, his mom asked haru if he could walk with him to school and then back home since they lived near by. Haru probably asked him few times to hurry up while he was putting on himself
![Moemoetan: 「おもらし少女」/「高瀬むぅ」のイラスト [Pixiv]](https://64.media.tumblr.com/728cb9247554f06fe50b2693701fb257/tumblr_mk9dfaDemp1rmu3x9o1_250.jpg)
