I just... don't even know where to start, as far as describing this fic goes. I found it shortly after I had first got Prototype, and was trawling the internet for fics. I count myself lucky that I found this gem.
It starts out like most other Zn T
fics, with Louise at the summoning. Straight off the bat, it decides to deviate from canon, in more ways than the inevitable 'Louise summons a humanoid tentactle monster with an eating disorder'. No more of this 'following the stations of canon' stuff that quite honestly gets old after the twentieth time. No, with Unfamiliar, you're getting something new.
The characterization is beautiful. The relationships and character growth put canon Zn T
to shame - and perhaps canon Prototype (1), too. The setting evolution (and fusion) is pulled off flawlessly. The story keeps you on your toes - you can't predict, you can only speculate. And everything is coated in a varnish of pure awesome, then dipped into the Fountain of Gushing Epic and lightly marinated in Fuck Yes