Tsudui is a Japanese manga artist whose illustrated diaries depict everyday life, friendships and fandom. The diaries attracted attention after their publication on Twitter began in October 2014. Her first book, Fujoshi no Tsudui-san (2016), drew on her enthusiasm for boys’ love manga and the imaginative games she played with friends. It was selected as a Jury Selection work at the 20th Japan Media Arts Festival. In May 2023 she began Tobidase! Tsudui-san on CREA WEB, following her move from her family home outside Tokyo to a new life living alone in the capital. The series explored the changes accompanying the move, unfamiliar experiences, friendships and the performers she supported as a fan. Its third volume, published in 2026, included her first concert by a male idol and a competition with a friend to make udon without a recipe. In Tsudui-san no Gojiai Kudasai, also published in 2026, she turned to self-care and the difficulty of extending to herself the affection she felt for others. Buying pink clothes, visiting a public bath and dyeing her hair blond became occasions to examine the habit of dismissing her own worth.
