Hikaru Yasuda, better known as Puchiko, is a main character in the anime series Di Gi Charat. She is a petite, quiet girl with a deadpan expression and few words, often seen accompanying Dejiko, the protagonist. Puchiko is known for her cat-like appearance, ending her sentences with 'nyu', and her reserved but loyal nature. Despite her shy demeanor, she is a reliable friend and adds a unique charm and understated humor to the series.