Battle at the Cave of Sealing!
Season 2, Episode 7
Air date August 18, 2012
Kanji 封印洞窟戦!
Romaji Fūin-dōkutsu Ikusa!
Episode Director Yuta Maruyama
Storyboard Kyō Nanahoshi
Screenplay Masaki Tsuzuki
Animation Director Tomoyuki Kitamura
Opening Fearless Hero
Ending Natsu no Yakusoku
Episode Guide
DD2 Episode 6
DD2 Episode 8

Battle at the Cave of Sealing! (封印洞窟戦! Fūin-dōkutsu Ikusa!) is the seventh episode of the second season of the Dog Days series. It first aired on August 18, 2012.


Adel, Valeri, Isuka and Brioche inspect a cave where they sealed some powerful demons in the past. When one of the seals is broken, a huge wave of mice demons break free. As the problem becomes more than the four can handle, Adel summons the other heroes who bring some friends with them to help against the mice.