Little Busters!: EX

When tragedy struck Riki Naoe as a child, he was rescued from grief over his parent's deaths when four other kids "recruited" him for their group—the "Little Busters." Now in high school, Riki and the other Busters are still fast friends, and though their vision of being heroes for justice may have faded, they'd still do anything for each other. Which is why Riki is now on TWO special missions. The not so secret one: recruiting new members so the Busters can form a baseball team. Preferably FEMALE recruits, as the current dude/babe ratio is an inconvenient 4 to 1. The OTHER mission, though... That's the strange one. Because Riki and Rin, the group's singular girl, are receiving odd messages, delivered by cats, concerning the existence of a "secret world" and assigning them tasks they have to complete. Were their youthful dreams of being crusaders not so fanciful after all? Or is there something even more vital at stake? Between steeling his courage to talk to girls, dealing with his own narcolepsy and facing his feelings concerning Rin, Riki may just need the strength of a superhero to solve the ultimate mystery of the Little Busters!

Riki Naoe and his teammates have finally formed a complete baseball team for the Little Busters. When the Little Busters reunite, there's a strange sense of déjà vu, as the personal mysteries and idiosyncrasies that have permeated the game coalesce into something unexpected. As the team members fall into their roles, the pieces of the puzzle begin to fall into place. And as Riki learns the secrets behind his narcolepsy, a stunning truth about this world will be revealed, one that will change everything. Will the game continue into extra innings, or will it be called before the final player goes to bat? Riki made the team and his teammates came, but the next pitch may throw everyone in LITTLE BUSTERS! REFRAIN!

A special unaired episode of Little Busters! sent to those who bought all 9 BD/DVD volumes of the anime. This episode includes the story about "Mask the Saito".

There's a rumor about a mysterious phenomenon called "puberty syndrome." For example, Sakuta Azusagawa is a high school student who suddenly sees a bunny girl appear in front of him. The girl is actually a girl named Mai Sakurajima, who is Sakuta's upperclassman who is also a famous actress who has gone on hiatus from the entertainment industry. For some reason, the people around Mai cannot see her bunny-girl figure. Sakuta sets out to solve this mystery, and as he spends time with Mai, he learns her secret feelings. Other heroines who have "puberty syndrome" start to appear in front of Sakuta.