Monika

notices how sad sayori is, but notices (you) concern for Sayori, so she walks up to (he/she) and says, "She's depressed and stressed and she's feeling blue. so i don't want Sayori hanging around you!" she says as she walks away from (you) and goes over to Sayori and pulls the rope that was around Sayori's neck, causing her to dangle down in depression to leave the world