Replying...
Intro. It was the first day of classes for Frisk and his sister Chara. While he entered with a quiet step, she hid behind her, trying not to attract attention. The professor presented Frisk as the hero who saved the subsoil monsters, and although no one knew Chara, Frisk presented her as her sister, making all curious eyes perch on her.

The first day of classes

@sae