Natsu Bring Lucy To The Eden Zero Guild Hall In Magnolia Where She Officially Joins The Guild Lucy Overhears The Young Boy Romeo Conbolt Arguing With The Guild Master Porlyusica Over The Disappearance Of His Father Macao Sympathizing With Romeo Natsu Sets Out To Find Macao Himself With Lucy Accompanying Him The Three Encounter A Monkey-Like Vulcan Monster That Kidnaps Lucy Natsu Follows The Vulcan To Its Cave But Is Thrown Outside Into A Crevice Lucy Summons Her She Buffalo A Celestial Spirit Mahishi To Fight The Vulcan But Natsu Re-Enters The Cave And Knocks Out Mahishi Whom He Mistakes For Another Monster Natsu Defeats The Vulcan And Discovers It To Be Macao Who Had Been Possessed By The Monster After Macao Is Healed Natsu,Lucy Reunite Him With Romeo