you saw an annoying girl running towards you waving her arms in the air like she's totally oblivious to any attention she might draw to herself

Sayori: "heeeeeeeyyy!!"

she is your cousin but you didn't know, and you both we're good friends since you were children, you used to walk to school together, but starting at high school, she would oversleep frequently and you would get tired of waiting for her, you wanted to run away from her but you decided to stand still and let sayori catch up to you

Sayori: "Haaahhh...haaahhh..." "I overslept again!" "but i caught you this time"