Yes, her mother

Because of the events that happened with the boy and not using a watch sako didn't know how much time had passed since she entered with her mother but she was sure it has not been little,

That brought to her mind the thought that maybe her mother was already done with the shopping and would be looking or waiting for her, thing that meant nothing but problems. sako's mom between many other things was not a patient person, was in fact the opposite, she could easily get mad if someone makes her wait for too long, especially if that someone is sako.

Sako knew that sometimes when her mother gets angry she becomes blinded by her rage and does things that she normally wouldn't, she remembered one time that she behaved really bad and her mother empyted her room forcing her to sleep on the wooden floor for like two weeks until her father found out and restituted her things to her room.

Or a time that her mother **** her to stood in front of the house for hours holding a sing that said "I'm a bad daughter" because she failed an assignment, because these and other experiences she feared what could happen this time if her mother gets angry.

She rushed out of the backroom to the supermarket showroom, Sako's embarrassment didn't disappear but now that she had at least something on she felt a lot less embarrassed, viewing in to the showroom she could see people walking from one aisle to another, the place was staring to fill up, she didn't feared being seen in the place she was but she knew staying there was no option, she had to move, but. Where? She had no way of knowing where her mother currently, if she is at the entrance or in one aisle or if she's moving between aisles, the only option she had was to look on every aisle, then in the entrance, it was tedious and risky but, what other options does she have?

Sako carefully searched for her mom through every corridor, as she searched for her mom she had the feeling that in any moment someone was going to discover her and say something like "look a topless girl" or "look, a giant baby" and laugh of her, even the guy on the supermarket staff that took that photo of her came to his mind, she had the feeling that in any moment when she looked over her shoulder and was going to see him with his damned phone in his hand and that he had been following and recording or livestreaming her through all her search for her mom, but much to her relief and thanks to actions as poking her head to see if someone was in a corridor before entering in it and moving quickly behind people's back she was able to make it to the last aisle without a single pair of eyes seeing her in her embarrassing state, but her problems were not gone yet because her mother was nowhere to be found, she had looked back and forth through all the supermarket and didn't even catch a glimpse of her, also while she searched the thought of her mom completely mad at her, already outside in the car waiting for her, build up in her mind like a horrific shade.

She panicked by the thought of what horrible punishment her mother was her mother going to give her for making her wait so long or what was she going to tell her when she asked why.

Sako was shaking at the idea of her mom mad at her, she was desperately trying to think what to do.