Cinque returns to the land of Flonyard in Dog Days' to resume his duties as the hero of the Biscotti Republic and it's as though he never left! The difference this time is that he's brought two friends with him who become heroes in their own right: childhood best friend Rebecca Anderson, who becomes the hero for the Principality of Pastillage at the urging of their leader Princess Couvert Eschenbach Pastillage, and his cousin Nanami Takatsuki, who becomes the hero for the Galette Lion Dominion. As with the first season though, with so many secrets to be uncovered and mysteries to be solved, will there even be time for the athletic events that these three hyper and athletic teenagers love to participate in so much?

Having won the 63rd National Sensha-dou tournament, the girls from Ooarai High managed to prevent their school from closure by the Japanese Ministry of Education. However, new troubles loom on the horizon: a ministry official argues that the deal was not legally binding and that the Ooarai school carrier is to be decommissioned. Students and their families are frustrated with this injustice and overwhelmed with despair; it seems little can be done to save the school.

Their last glimmer of hope is a proposed match against the All-Stars University Sensha-dou team, consisting of the most talented students from all over the country. Despite Ooarai being severely outnumbered and clearly outclassed, they accept the challenge.

[Written by MAL Rewrite]

A special animated commercial to celebrate the release of the manga's fifth volume. The full length version of the commercial was released on Kodansha's official YouTube channel the day after the short version was released on TV. It features the anthropomorphized cells of a human body, with the protagonist being a red blood cell named AE-3803.

Shi Miao is still stuck with her irresponsible elder brother Shi Fen, who lives in neverending fear of his younger sister's stormy temper. As the siblings continue enjoying their carefree high school days alongside their friends and classmates, they realize that there truly is no cure for family. [Written by MAL Rewrite]