Gab can't spend New Years with her usual demon so she tagged along with Kurona when the opportunity arrived. I wonder if Gab is having Vignette withdrawl.
It certainly does, but as a nickname, and with a っ子, which already means child explicit and all, I would rather just TL the katakana as is. I thought of using Loli senpai or Loliko but I feel it misses the point a bit.