What's so embarrassing about wearing children's clothing?

William accompanied Seraphina on a stroll because he wanted to retrieve some clothes.

"Mr. Johnson, which type of clothes do you think would look good on me?" Seraphina was not willing to give up easily. 

Even if William was already married, it didn't seem to affect anything, right?

There's nothing strange about pursuing the person you like.

After all, she had fallen for William.

William glanced at her and said, "They're all fine."

The two of them had already arrived in front of a children's clothing store. William took a look inside and said, "The clothes in here seem quite suitable for your current figure."

"... " It was only at this moment that Seraphina realized she was wrong. 

She was truly mistaken.

Which nerve of hers had gone wrong, causing her to shape her body into that of a 12-year-old girl?

There was nothing wrong with her cute facial features.