You are going to become her secret-keeper, whether you like it or not... (Male Protag)

You had just arrived to school, trying to avoid the hassle of the crowd by coming a bit earlier than usual. You were moving faster than normally, and had just passed a blind corner when you felt a heavy weight crash into your chest. Without noticing, you had accidentally crashed into one of the Night School Girls, Nicole, who had just finished her classes. Nicole jumped, almost like she was afraid of touching you, and landed on her ass. You were about to offer her a hand when you felt a painful slap on your own behind. You turned around, looking for whoever spanked you with what felt like a plank of wood, but found nobody.

"Are you okay, c-citizen? I mean s-s-student?" Nicole stuttered out.

"I'm fine... I should say that to you."

"No! You need to go to the nurse's office and get an ice pack to sit on... if you feel bruised in any way, not for any reason right now! Heh heh..."

Nicole had jumped up, nervously thumbing at her belt buckle. Did she see what slapped you? Before you could ask, you suddenly saw Dana creeping up behind Nicole. You wanted to warn her, but with a glance, Dana scared you into submission. Grabbing Nicole's belt, Dana quickly unclasped it before pulling her cargo pants all the way to the floor. You cringed in guilt as Dana lifted and spun Nicole around to discombobulate the poor girl, her Superman briefs and bruised ass on full display. However, you suddenly noticed Dana's belt and pants were on the ground right next to Nicole's...

Dana suddenly lurched over, stumbling as if she was the one being spun. Nicole took the opportunity to grab her pants and run away, forgetting her belt all together.