Riki Naoe and his teammates have finally managed their goal of forming a complete baseball team for the Little Busters. This time around the personal mysteries and idiosyncrasies that have permeated the school and games slowly begin to coalesce into something unexpected and the team falls into their roles as the pieces of the puzzle begin to fall into place. A stunning truth is about to be revealed that will change everything in LITTLE BUSTERS! REFRAIN!
The Little Busters hold a pancake party after their first real game. Later, jealousy gets the best of one girl, and Kud ends up a victim of revenge.
The boys scheme to get Riki to confess to Kurugaya with a fireworks displays, while Riki continues to have feelings of de ja vu.
Riki continues to relive June 20th. With no end in sight, he goes to Kurugaya for help.
Riki contemplates a possible relationship with Rin. Rin, being Rin, beats him to the punch.
With Riki and Rin still figuring out their budding relationship, a life changing event takes place that puts into question into question for Riki.
Kyousuke's true intentions for Rin come to light. Riki refuses to accept this truth and goes in search for answers.
Riki tries to bring back Rin's smile, and decides that they should form…a baseball team?
Masato sets out to prove he is the strongest, destroying everyone in his path. Riki and Rin try to get him to join the Little Busters.
Rin, Riki and Masato try to convince Kengo to join. Knowing that he wont be able to defeat him at his own game, Riki challenges Kengo to a baseball game.
Kyousuke looks back upon his successes and failures in trying to make Rin and Riki as strong as possible. As the end grows near, he questions his significance and life's meaning.
With everything they've ever known crumbling around them, Kyousuke reveals the secret behind their world and his true intentions for Riki and Rin.
Riki and Rin return to the real world, both refusing to let their friends go, and both dealing with it in their own ways.
A race against time to save their friends lies before Riki and Rin, but thanks to Kyousuke, they may be strong enough to take the challenge head on in the bittersweet conclusion of Little Busters! Refrain.