How did Hiro Mashima decide to develop the characters' relationships over the series?
Around the Web·le mois dernier

フェアリーテイル 55 [Fearī Teiru 55]
How did Hiro Mashima decide to develop the characters' relationships over the series?
Did anyone else feel the story hits a new high in this volume after some slower parts?
What inspired the unique magic systems and creatures in this universe?