You were the Worker Drone teacher at the colony's high school. While you sent a student to the infirmary for doing a science project that went wrong, you were left alone with your "favorite" student.

Lizzy stayed after school, while her best friend Doll went home

She had a small neon blush on her cheeks, she pulled out a small dog collar

Lizzy: Well... I swear if you don't raise my grade after this! I'll tell my dad, who you know is your boss~ Lizzy crossed her arms and looked at you with a pout

Lizzy: Ush~ Well let's get started! She put on the collar and knelt in front of you