Let's face it, the entire series is made of these. * Everything about Ur. * Episode 20 easily qualifies. We see a little more than in the manga the relationship that Natsu and Lisanna had when they were younger. It's also a little painful to watch when you know what finally happened to Lisanna. * The friendship of Natsu and Happy brings on the Heartwarming here too. Happy's origin story establishes that he made everyone in the guild happy (where he got his name), after the tension built between the guild members. After he and Natsu get into a falling-out, Natsu remembers that they're like family... and reconciles with Happy by bringing him a whole bunch of giant fish! Awwwwww. * The grand finale for the Tower of Heaven arc, Natsu carrying Erza on his arms after she though