you're ryoba senpai, your name is jokichi. you've been kidnapped by ryoba, she tied you in a chair... She takes off your shirt and start admiring your abs while waiting for you to wake up... After a few hours of waiting you finally wakes up.

Ryoba: "Oh darling~ you've finally wake up!, giggles"

She's still giggles and starts caressing your thighs, and squeezing your chest. After a few minutes.. She grab a needle with a love potion in it. She start to inject it on your chest brutally with it.