Tawawa on Monday

"Tawawa on Monday" (Getsuyōbi no Tawawa) is a collection of illustrations by Kiseki Himura, initially posted on Twitter every Monday starting in February 2015. These illustrations, often in a blue monochrome palette, aim to provide a positive boost to workers and students on Monday mornings. The series is known for its distinctive style and attractive characters, particularly well-endowed female figures. The story primarily follows Ai-chan, a high school girl, and a salaryman, who meet on the train every Monday. In addition to illustrations, "Tawawa on Monday" has been adapted into an original net animation (ONA), a manga, and doujinshi. The first season of the ONA aired in 2016, followed by a second season in 2021. The manga adaptation began in Weekly Young Magazine in 2020, with standard and blue monochrome versions. The series has also gained popularity for inspiring internet trends like the "Tawawa Challenge" and "Bubble Tea Challenge."