Hello everyone,
I hope all are doing well.
I'll go directly to the subject.
The game is 3rd Person JRPG Hack and Slash.
You start as a man (in a shore if I remember correctly) with a sword and a whip to zip through blue jewel-like things in the sky.
You can use Combos and Skills to kill demon hordes mid-air.
The first boss is a giant worm or succubus, looks a bit like Devil May Cry 3's boss, but fully covered with metal.
While you fight the boss, a girl calls through radio or something to start a conversation with the protagonist.
The version I played was in Japanese language which is why I didn't complete the game back then.
I can't remember the name, publisher or year.