Bishojo KUNOICHI chan tachi ga sensei no himitsu wo nozoitemita kekka (Associated Names)

In the abandoned B3 underground plaza of a large train station, Sugiyado Souha, a 17-year-old boy with a scar on his face, was facing two fighting groups of kunoichis. On one side was Kuhou Ouka. She was a girl of 13 or 14 with her long chestnut hair worn in twintails. She wore a special…