- Bonus Material: Every volume of the manga comes with several extra strips and explanations that Higuchi couldn't fit into the main series.
- No Dub for You: Because Nozomi Entertainment (who has Season 2's licensee) completely refuses to commission dubs for any previously unreleased series, Season 2 will not have a dub.
- No Export for You: Season 1 didn't sell as well as Funimation had expected, so they decided not to license Season 2.
- Series Hiatus: Asa Higuchi took a 1 year maternity break from 2010 to 2011.
Trivia / Big Windup!