Beginning with Misaka Mikoto's staticky furst encounter with a feline of unusual size, these stories focus on Constance Battuta, the Hydromancer. Despite her initial appearances, she's not quite all she seems, least of all a "cool foreign beauty." Stories heavily center on her involvement with Academy City as a newcomer, and the girls of Tokiwadai Middle School.

The first scene is set in the immediate aftermath of NT22R (thus, spoilers within) - Specifically, a scene that should have been included within that volume, and yet was inexplicably not only left out, but saw certain characters acting as if the main events of the novel never occurred. So I wrote this for my own satisfaction, while hoping this gets a canonical resolution soon.