Fairy Tail Episode 203: Bisca of all people gets a backstory episode. Apparently, her becoming a member of Fairy Tail involved being punched through TWO load-bearing walls by Erza...
You should. I make fun of its shortcomings, incosistencies and silly plot points, but it is still a fantastic show. You know what really makes it stand out? The way it sounds: this show has great voice acting and a stellar OST, and those are aspects that help you a lot to get invested...