Fairy Tail: Memory Days (2012)

The OAVs are not "canon" stories and are more comedic/fan service in nature. The first has Lucy entering a dorm to find an item while dressed as a Cat Princess. The second has the guild recast as an academy with all the normal high-school antics. The third has Erza, Natsu, Grey and Lucy travelling to the past when they were children. The fourth has goes more in depth on the training that was done prior to the Grand Magic Games. The fifth happens halfway through the Grand Magic Games with the characters at a water park.

Source: www.anisearch.com/anime/7695

In dieser OVA finden Erza, Gray, Lucy, Happy und Natsu ein Buch in der Bibliothek von Fairy Tail, während sie dort als Strafe aufräumen müssen. Dieses Buch bringt sie prompt in die Vergangenheit, an einen Tag, an den Natsu sich nicht erinnern will. Wie das wohl enden wird?

Quelle: www.anisearch.de/anime/7695