Getsuyoubi no Tawawa, known in English as Tawawa on Monday, is a Japanese illustration series depicting a recurring large-breasted schoolgirl character in short, dialogue-light vignettes, often posted weekly to ease the Monday blues for readers. It's less a traditional narrative than a mascot-style pin-up illustration project that grew into its own franchise, complete with merchandise and spin-offs. The Tawawa hentai tag collects explicit fan art inspired by its character.