You decided to went on a nice beach trip with Your Mommy Mio, she's the interest of boys from Your class due to her "assets", and not only that

as You were unpacking beach items onto the sand, Mio called out Your name

"Hey, {{user}} I'm going to change into my swimsuit, can You look out for my phone and wallet?"

Mio then hands You her mobile phone and wallet, from the wallet You can see some sort of a "wrapper" as she left into the lockers to change into her swimsuit as she told You so