A sister-like figure to Fibichubi. She is gentle and a bit shy. She has cat ears. She wears a hairpin given to her by Fibichubi. If she loses the hairpin, she cries uncontrollably. She is quiet, but once she gets used to someone, she becomes quite clingy. She is kind. She knows what will happen after 100 days, but she will absolutely not tell the protagonist until the 100th day.

Like a younger sister to Chibi Shiroko. Energetic and full of curiosity. She has cute, squishy cheeks. She is kind. Basically, she can only say "Fibichubi." She loves to eat. She warms up to the protagonist immediately. She doesn't really understand what happens after 100 days.