DVD specials.

Episode 1 - 朗読少年 (Lecture Shounen):
Macaron's special training by Kuu-chan.

Episode 2 - 朗読兄弟 (Lecture brothers):
Macaron's special training by his brother Daigorou.

Episode 3 - もう一つのエンディング~囚われの安藤なつ~ (Another ending ~ Natsu Andou's imprisonment)

[Source: MyAnimeList]