Not every day has to be a life or death experience, and in the downtime between world-shaking events the mages of the Fairy Tail guild often find themselves doing more mundane things such as cleaning a pool, training at the beach, or relaxing at a water park.
A collection of side-stories primarily focused on ecchi and comedy. Though most of them take place at various points during the parent series (1 & 3 are in the 69-97 range, 4 is post-123, 5 is between 170 & 171, and 7-9 are post-201), a couple (2 & 6) are stand-alone what-ifs.
More Information:
aniDB
Wikipedia