The main additions in "Little Busters! Ecstasy" are 3 heroine routes involving the characters Futaki Kanata, Sasasegawa Sasami and Tokido Saya.

The 3 EX heroines' routes take place of the following:

Saya's route - Before the events of Refrain.
Sasami's route - After the events of Refrain.
Kanata's route - First half of her story is before Refrain and second half is after Refrain.

The episodes will be bundled with the BD/DVD releases of Little Busters!: Refrain.