The Tatami Galaxy contains episodes 1-11 of the anime directed by Masaaki Yuasa, plus the OVA.

College is full of opportunities to leave one's comfort zone. One third year student is constantly fantasizing about how his life might differ had he joined various campus circles-chasing, with mixed results, an idealistic rose-colored campus life where romance, friendships, and purpose fuse into a perfect university experience... at least until bad luck, questionable decisions, and dubious relationships enter the mix! - The Tatami Galaxy contains episodes 1-11.