Also known as: アイちゃん(月曜日のたわわ)
A character from Getsuyoubi No Tawawa. Presently the most frequently recurring character in the series, as well as the main character of the short Getsuyoubi no Tawawa manga released at Comiket 89 and the first female protagonist of the ONA series.
She is 149 cm tall and has a weight of 50 Kg, of which her breasts weigh 5 Kg.
Most of her appearances so far have to do with her large breasts, and often involve "Onii-san" as well.
She is called "Ai-chan" (アイちゃん) in the manga due to her bust size, which is "I" cup. This measurement increases over the course of the series, and so she later suggests to be called "J-chan" (ジェイちゃん). As of 16 January 2017, her bust size has broken the 100 cm mark, making it K-cup.
She is voiced by Harada Sayaka.
