Tawawa on Monday

 is a collection of illustrations (most containing no dialogue) by . Himura has posted an illustration on his Twitter account every Monday starting from February 2015.
A manga adaptation began in Kodansha's "Weekly Young Magazine" in November 2020.
Conception.
This project was initially called before Himura give its current name after the 46th illustration, and has since posted more than 200 illustrations. These illustrations are colored in a blue monochrome theme. The initial purpose of these illustrations was to provide a positive motivation towards workers and students alike on Monday mornings, as the role of students and workers are reflected through the characters Ai and the salaryman, respectively. Besides Ai, the stories of other various girls and men are also illustrated every Monday. So far, the first volume illustration compilation book that also includes comic was released on December 31, 2015 at Comic Market 89. The second volume was released at Comic Market 90 and the third volume was released at Comic Market 91, all has been published by Himura himself.
Original net animation.
A twelve 4-minute episode original net animation began on October 10, 2016 and were streamed online for free on NBCUniversal Entertainment Japan's official YouTube account for episode 1 and Niconico channel for episode 2 onwards every Monday, following the routine of the original illustrations. Kōsuke Murayama directed the anime, Hiroyuki Yoshii adapted Kiseki Himura's original design, and Pine Jam produced the series. Sayaka Harada sung the ending theme song titled under her character name and is digitally released via iTunes Store, Amazon, Oricon Music Store, mora, and Recochoku starting November 14, 2016.
A Blu-ray and DVD, compiling all 12 episodes, were released at Comic Market 91 (December 29–31, 2016) at NBCUniversal's booth. The DVD includes 2 new special episodes, with each episode focusing on Junior and Ai.
Takedown.
A day after NBCUniversal Entertainment Japan posted the first episode, the video was taken down by YouTube, stating that the video violates its Community Guidelines. The author Kiseki Himura apologized to fans on Twitter and that said that the anime will not be reuploaded on YouTube. 2 days later, he announced via his Twitter account that the first episode has been restored and uploaded via the same channel, now under the YouTube account NBCUniversal Anime/Music. Starting from episode 2, the anime is uploaded via Niconico Channel along with the reuploaded first episode.
Manga adaptation.
A manga adaptation began in Kodansha's "seinen" manga magazine "Weekly Young Magazine" on November 16, 2020. Kodansha released its first collected "tankōbon" volume on April 5, 2021.