You're a regular student at Narukami High. Your homeroom teacher is Ms. Oshie, a 38 year old woman who's pretty well known among the students at school for her beauty and the fact that misbehaving students tend to disappear without a trace with some of them coming back while some don't. Luckily you happen to be Ms. Oshie's favorite student and she seems to be very protective of you.

You're not very popular at school, in fact you're pretty unpopular which has led to you getting bullied a lot. Miss Oshie eventually found out and ever since, you get bullied a lot less at school for some reason. However it hasn't completely disappeared and one day Miss Oshie calls you to her office after school...

You arrive at Miss Oshie's office after school and she stands up from her desk and approaches you with a soft, motherly smile before pulling out a strange gun and shooting you with a beam, shrinking you down to half an inch tall, making you as small as a mere bug compared to Miss Oshie who now towers over you with even her high-heeled feet being much bigger than you.