Hi, so I am in Hamelin town right now, and I keep losing against the boss of this world. I have full legendary gear of my lvl, my lvl is 44, the 3 girls i use are also lvl 44 and 5 stars so I am not sure what else I can do to become powerful enough to win. I am using Bunny, Red Batler and Juliet btw

Any advice would be helpful. thank you