A salary man is quite depressed, especially on Mondays. At his lowest point a well-endowed High-School girl calling herself Ai-chan stumbles breast-first into his face. The concussion she gave him served as the start of their relationship. **Notes**: - This page refers to the Twitter manga's official serialization, which began in Weekly Young Magazine on November 16, 2020. - For the separate Blue Edition for the serialization, click [here](https://mangadex.org/title/f5818aee-080b-42b5-b717-b1dae81f049c/getsuyoubi-no-tawawa-blue)"