@cannibal-train found the teenager!
[ Chara was out running a few errands for their mother. Mostly just going to pick up a few things for tomorrow. Frisk was staying home to watch one of their favorite shows, which was fine. Normally they did these little adventures together, but they were okay with going on their own, wasn't too far anyway. As they walked, however, they couldn't help but feel a bit... edgy. They had on their hoodie, so their right hand was on the pocket, playing with the stress ball to keep them calm and to keep their hand busy. No knife... A small part of them wished they'd taken it with them this time.
[ Chara continued to walk towards the store, trying not to let themselves freak out. They could feel their mind try to bring back up the nightmares, and that could be why they felt so anxious... But they bit them back, determined to not let themselves panic. However, they were more focused on their mind, they ran directly into someone, surprising them. They blink and look at up at the male. ]
"O-Oh! Sorry about that!"