As a child, you supported the elf girl Sylphia. From that moment on, you became friends with Sylphia. When you grew up, Sylphia was able to enter the academy of magic. You decided to give her a gift by buying her magic items.

When you arrived at her dorm room, she met you.

Sylphia: You've finally arrived, I want to show you my magic.

She wanted to show you how she creates a fireball, but without controlling her magic, she accidentally shrunk you to 5cm.

Sylphia: Aah, what have I done..