Drawn in response to this tweet.

Image no longer available on Pixiv, but is still up on Twitter (although in smaller size), plus an alternate version where her dress is all-black: https://twitter.com/rko10032/status/988009345098002432

Found the source via saucenao. However, the Pixiv version has very heavy JPG artifacts. This one must've been edited, so I added third-party edit.

This has an SCP vibe to it.

This is actually cute as fuck.

Finally figured out who the guy in the fur-lined red hoodie is: Philip LaFresque from some game series called Penumbra.

FYI, Hijiki is a type of edible seaweed (Sargassum fusiforme or Hizikia fusiformis) but is also a slang in Japanese Prototype fandom referring to the Tendril Barrage devastator attack. Which I guess resembles the seaweed.

Why'd they draw Altaïr but put the logo from Unity?

I have zero clue on KanColle character tagging but I can discern that this guy's Pixiv tag is ジャマイカからやってきた金剛型1番艦

I took a stab at translating the commentary. For context, this was posted to Pixiv on May 10, 2009.

She's not cosplaying Connor! See the phantom blade? the tricolour (well, tri-stripe, since it's monochrome) flag? Not to mention the completely different outfit! Clearly this is an Arno Dorian cosplay!

Remember post #884176? This is still a thing. The girl groping boobs at left is a new one: salicylic acid.

Kinda cute, but the too-huge boob ruins it, IMO

What the hell is "sinato comparisa"? Googling it only brings up this image...

Does she remind anyone else of Lan Fan?