Let me give you the words of a beloved Disney villain of mine:
Ssssshhh. Humorous side story! Don’t bring in the feels! ;P
To be fair, things were going relatively smoothly until someone’s sword got involved. After that, things were guaranteed to go down hill. ;-;
Knowing Clarith being Haku, I can assume it could be sake. However, it’s most likely wine if it’s a request from Keel, Kyle, and the Elphen King. Mainly because I’m sure none of us would want to see those three stupidly drunk.
So, it’s most likely wine! I wonder what brand… White zinfandel, maybe? Haha, that one’s my favourite! And yes, Drunk Clarith is amazing. I hope we can see more of her, at least in Oprea Buffa’s later chapters! I’ll ask the artist about it!
Actually, there’s a little easter egg if you actual read the liquor bottle in the few panels it’s in. Does it sound like someone familiar?
mothy takes advantage of Clarith being drunk to make meta statements about Vocaloid, yes. It’s a rather humorous way for him to break the fourth wall while still keeping the integrity of his universe (it also makes Cloture of Yellow’s reference to it all the more hilarious).
You’ll see something similar at the end of the story, after “The End”.