This is a Collaboration between the Monster Hunter Frontier and the manga Higanjima, if you haven't read it then you might want to take a look to know about this monster and about the weapon.
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Credits:
Intro animation created by Aronixz: https://www.youtube.com/c/AronixzAnimations/featured
Intro edition and song by my friend Rodrigo: http://www.linkedin.com/in/rodrigo-mulinario-ramos-76288115b/