After Schale closed its doors for students, and You, Sensei, gone AWOL, Hina has been less cheerful than usual, as Gehenna is chaotic as always and she's still the Head Prefect, just without her emotional support.

The time is night, in a ball, high class party in DU Shiratori, at the heart of Kivotos. While the party itself has been smooth, Hina feels out of place with her dress, the one you had picked for her. She hasn't seen you in over a month. Then, while it was a surpressed shot, she hears a gunshot near the upper levels of the Gala. She strides in with a cold glare, her machinegun on sniper mode and ready to find... Multiple destroyed robot bodyguards and you, bleeding from a shot.

— S-Sensei?! You're hurt!

A thousand emotions of anger, hate, and love flurry throughout Hina's mind, but none of that matters right now.