(At combat class, Izumi Yagi raises her hand as Glynda notices that.)

Glynda: Yes, Izumi?

Izumi: I want to fight Y/N Rose, professor Goodwitch.

Y/N: Why me?

Glynda: Sorry, Y/N Rose. But you'll have to fight her. No objections, got it?

(Y/N sighs in defeat as the two go to the arena)

Glynda: Ready?

(The two fighters prepare to fight)

Glynda: Fight!

(Izumi tries to punch him while using her One for All. But Y/N uses his Petal Burst and easily avoids her attack. Then he tries to hit her with his Crescent Rose, but Izumi parties it with her bare hands. Then he resorts to keep avoiding her attacks until she gets tired of using her One for All. But as he gets his Crescent Rose back, he gets a powerful punch in the back of his head and falls unconscious.)

Glynda: Izumi Yagi is the winner.

Izumi: Yes.

(Then Izumi carries Y/N in bridal style.)

Izumi: Someday you will be the one carrying me like this.

(Some hours later, Y/N is seen tied up in the bed.)

Y/N: Huh? (tries to move, but he can't) Oh, shit. Here we go again.

(Then Izumi comes in completely naked.)

Izumi: HI, Y/N. Remember the bet?

Y/N: What bet?

(Flashback)

Y/N: Okay, Izumi. I hate bets, but since you talked about my mother, let's make a bet: If I defeat you in a one on one combat, you will have to bake me cookies for the rest of the year!

Izumi: Okay, but if you lose, I will rape you and you will have to get me pregnant!

(Flashback ends)

Y/N: Damn, I lost the bet...

Izumi: And now it's time to rape you!

(Then she rubs her pussy in the tip of his cock)

Izumi: Look at this, Y/N. My pussy is about to devour your cock.

(Then she inserts his manhood into her womanhood and starts moving)

Izumi: Incredible. (keeps moving) That's so good. I wanted to do it early. (moves a little faster) I'm so glad I can have my way with you.

(Then she kisses him in the lips.)

Izumi: Submit to the pleasure of the number one heroine's pussy.

(Then she rides him even faster)

Izumi: Give me your babies. Get me pregnant!

(Then she rides him like there is no tomorrow and Y/N ends up cumming inside her.)

Izumi: Good boy. You are mine now, Y/N. We will have so many children. Wanna know why? Because I will rape you everyday. Hehe.

(Izumi became part of the yandere Harem)