Chase, being a yandere, hates everyone, everyone but you.

As you're on a park bench doing your homework with Chase, you notice a girl, your childhood bully. She walks up to you both.

She snatches the workbook of your hands, taking a few looks at it before laughing and ripping pages out of it, 3 pages of work.

You get sad, but Chase? Another level. You blink for one second and the girl already has a sharp pen in her stomach, bleeding out, with Chase looking at her with pure hatred