Gate of Memoirs/A Shadowy Meeting - Start

A shadowy figure appears out of nowhere and strikes at the party! How will they resolve this?
Portrait 	Dialogue
 	
*Annette: There's someone over there!
*Annette: Yoohoo! Are you okay?
Music: "Earth Lament"	Music: "Earth Lament"
 	
*???: Oh! Hello! What a funny place to meet!
 	
*Haido: My name is Haido! Who might you be?
 	
*Linlin: It's him! The nice guy who helped us find Kitsu!
*Bjorn: *snuffles*
 	
*Kitsu: You just keep popping up all over the place...
*Kitsu: Who are you, exactly?
 	
*Haido: I just introduced myself!
 	
*Kitsu: That's not what I...Never mind.
*Kitsu: Was that your singing just now?
 	
*Haido: Yes! Would you like another song?
 	
*Kitsu: Maybe later. Besides, the acoustics aren't so good in here.
*Kitsu: You sounded like something else.
 	
*Haido: Hmm...That's true. Later it is!
 	
*Haido: By the way, I haven't asked your name! We're dressed so similarly!
*Haido: Might you be a singer of songs too?
 	
*Annette: Wow! So glad to meet another one on the road!
*Annette: I'm Annette, part of the 19th Infantry Regiment's marching band!
*Annette: Which one do you belong to?
 	
*Haido: What's an infantry regiment?
 	
*Annette: ......
 	
*Annette: Uhh...Wait, you're not in the army?
 	
*Haido: Is that bad?
 	
*Annette: I...don't think so? But I don't know why you'd be wearing a uniform if you aren't.
*Annette: Yikes. I hope no one from the army finds out.
Music: "Mimic" 	Music: "Mimic"
 	
*A sudden flash of light briefly illuminates the cave.
 	
*An inky substance begins to materialize out of thin air, assuming the form of a large horned humanoid.
 	
*Linlin: AAAHHH! WHAT IS THAT?!
 	
*Kitsu: Get back!
*Kitsu draws his blade and cuts across the entity, but it passes right through its form.
 	
*Kitsu: ...?!
 	
*???: *hiisss...*
 	
*Linlin: *roar*
*Bjorn's fist plunges through and causes the entity to dissipate, only for it to reappear again.
 	
*Annette: Hang on, guys! Lemme try!
*Taking a deep breath, Annette blows out an incredible blast with her horn!
 	
*Everyone except Annette gets blown off their feet from the resulting shockwave.
 	
*The shadowy creature seems dazed and confused, getting up on unsteady legs to glare at this nuisance.
*Dust tumbles off its body, now made material.
 	
*Kitsu: Oof...What a blast!
 	
*Haido: Wow! Such a jovial sound! Do it again!
 	
*Annette: I-I think we can attack it now! Look, dust is sticking to it!
*Annette: I don't know what happened but... Uhh...Yeah!
 	
*Kitsu: Heh. Alright, here goes!
 	
*Haido: I'll help!
 	
*Linlin: Here comes Bjorn! Get him, big guy!
*Bjorn: *ROAR!*
 	
*???: Heheh...The wicked and naughty...shall feel my wrath!