Ai Kagura, also known as Ai-chan, is a central character in the anime series 'Tawawa on Monday'. She is a high school student known for her cheerful and bubbly personality. Ai-chan's interactions often bring a sense of warmth and positivity to those around her. She frequently meets a salaryman on the train during her commute, and their casual conversations become a weekly highlight. The series focuses on these lighthearted encounters, showcasing her as a beacon of innocence and charm amidst the mundane routines of daily life.