Houki Shinono is Ichika's childhood friend although he didn't recognize her at first. Her family owns a kendo dojo so she learned how to fight at a very young age. She has won several kendo competitions at a national level. Her sister is actually the infamous creator of the IS system. She pilots the Akatsubaki, a short-range melee unit armed with twin katanas. Her One-Off ability allows her to replenish her own and her allies' IS energy when in close contact with them.