Halloween Event Second Half 2N

Operation Happy Halloween (Second half)
Normal Chapter 2
Hero Club room
It: Sumi-chan, what did you want to talk about? It seems like I'm the only one you called...
Su: Yes, I wanted you specifically, Itsuki-san.
It: Wh- what could this be...? Ah! It's just us two in the club room in the evening - could this be about love advice!?
Su: ...? I have in fact wanted to try cooking with carp for a change today...*
It: ...
Su: Should I go with carp soup, after all?
It: Huh? Ah, uh-huh! Sounds good! Carp soup!
It: (Wh-what sort of dish is that...?)
Su: Anyhow, I called you here because I wanted some advice regarding the, uhm, Haloen issue...
It: Huh? Ah, aah, about Halloween, right!
Su: I've thought about it all night, but I couldn't come up with a suitable costume to scare others.
It: You thought about it all night...
Su: I arrived at the conclusion that you might have an idea, Itsuki-san, since you have taken part in all sorts of events with the Hero Club.
It: I-I see...
Su: As it is a Western festival, I believe it would be fitting to use Western costumes. What do you think?
It: Hmm, I don't think that you have to use Western-style costumes. Japanese ghosts can work, too.
Su: Y-you think so? I'm glad to hear that. Then, a umibouzu or tsurube-otoshi would be fine!?**
It: U-umibouzu!? Tsurube-otoshi!? I-I'm curious how those would work, but won't that be all sorts of trouble!?
Su: Eh... But if we want to send shivers down their spine, the costume needs to have at least that much of an impact.
It: There's no need to take it that far! Just surprising them a little is enough!
Su: Mhmm... How about Oiwa-san? I'm confident in my skills when it comes to wearing Japanese clothes properly.**
It: I-I'm sure that would be a perfect match for you, but it might be so scary that even I could be too frightened to move...
Su: Ugh... I suppose it would defeat the purpose if even you got scared, Itsuki-san.
It: A-ahaha...
It: (I thought Tougou-senpai and her are very much alike, but Sumi-chan is even more straight-laced.)
Su: ...? Itsuki-san?
It: Ah, never mind, it's nothing! I'd say there's no need to think so hard about it right now.
Su: Well, if you think so. But still...
It/Su: Hmm...

*Koi can mean both love and carp
**Umibouzu: A sea monster with a round head like a monk's
Tsurube-otoshi: A monster that drops from trees to scare and attack people
Oiwa-san: A vengeful ghost of a woman in a white kimono with a disfigured face