After Erza convinces Natsu to help the ghost of Mavis Vermillion experience the simple joy of a hot bath, Team Natsu visits a hot spring.
This OVA is well-known for its high levels of fanservice, featuring various guild members at the hot springs and comical interactions between Natsu and the First Master. Context and Viewing
While OVAs are often separate from the main plot, this one is considered canon as it adapts official manga material and side stories by creator Hiro Mashima.
Watch this reaction and review to see why fans consider this OVA one of the wildest in the series: FAIRY TAIL IS WILD | Fairy Tail OVA 8 Reaction + Review! YouTube• May 26, 2022
The group takes on a request from Warrod Sequen , one of the Four Emperors of Ishgar, to find a "hidden treasure" buried by Mavis herself 100 years prior.