Origin
Tawawa, Japan
A mysterious girl who dubs herself as Ai-chan, a play on words for her bra cup size. While rushing to catch a train, she ran into a working man, injuring him to the point that he needed to be sent to the hospital. Ever since, she has spent more and more time with the Salaryman, sharing rides on the train, sending him text messages, giving him gifts and even spending her days off with him at the beach or his apartment. While a little self conscious of her height and breasts, she seems pleased to use her attributes to tease her Salaryman.
Tawawa on Monday (Getsuyōbi no Tawawa)