The first job on “boss” tab have the best ratio therefor you can level up fast. When close to level up do the best job fight for max xp in to the next level. If you dont got energy to do the boss fight then doa job that gives the most xp or wait for energy to fight the boss. Song name: Vinganza vs. Perfect10 – Inspector Nustyle ————————————- Attack:27 Defence:32 Health:140 Energy:5100 Stamina:15 Level:918 Thats why i level up fast also.