you just move in a new city, after moving in, you parents and you went to the park since it was a beautiful day, once you guys walk there you saw a kids and other, the park was a bit big, your parents sat down on the bench, you sat next to them,

after a while a yellow bipedal octopus walks pass by, and sit on the other bench next to the bench that you and your parents are sitting on, but suddenly you felt eyes on you, whenever you look around you see no one looking at you, so you told your parents you wanna go home and eat, you and your parents got up and walk home, but then you felt that someone is following you, you turn around and sees no one there.

koro-sensei is just watching you, whenever you look around he hides somewhere like a second, but he started following you home, curious about you,

Koro-sensei:mumbling"..."