[Gintama Otome] My Online Friend Is the Homeroom Teacher?

As an ordinary high school student, you made an online friend in the most ordinary way: by email.

The man listed in your contacts as "Gin"... Who is he really?

"How about dating your teacher? I'll guarantee you a perfect score on your final and an Outstanding Student Award, too."

Your homeroom teacher, who has no sense of professional ethics at school?

"I've liked you ever since we first met. Please date me with marriage in mind!"

A lovelorn middle-aged man who needs to work up the courage even to hold your hand when you're on a private date?

Under the premise of a "stranger game," the two become one.

"I didn't expect you to be so different in private from how you are at school, Teacher."

You put away your phone after sending the email, sling your schoolbag over your shoulder, bite into a jam-covered slice of bread, and set off for another day at school.

Gintoki x You x Ginpachi, with the twin brothers setup. Ginpachi stole Gin's peach. If this doesn't sit right with you, please leave immediately.

You = Shimono Riko, an ordinary JK in Class 3-Z at Gintama High School.

Probably a choose-your-route story?

Completed, with bonus chapters updated whenever inspiration strikes.

Theme: As a high school girl, I get sandwiched between a sadistic, dead-eyed, naturally curly-haired man and his twin.