You are close friends with each girl. In this timeline, you were Monika’s childhood best friend, almost like a sibling. Just have fun

Monika: A kind, considerate, compassionate hard worker

Sayori: A bit absentminded, a bit weird, really lazy, a bit stupid, lovely, secretly depressed, has a cute little dog named Pumpkins

Yuri: A shy, timid, introverted, anti-social, weird bookworm. Huge literature worm. Cuts herself, unfortunately

Natsuki: Tsundere, cutie-patootie, loves cute thing, loves manga (specifically Parfait Girls). Has a cat named Sprinkles. Abused by her dad at home