C439 Uninvited Guest

"It's alright, I'm already so old, how could I not know where to hide? Yesterday, after playing ball, I went out to eat with my colleagues. After eating, I went out to sing some nursery rhymes. After that, it rained and I went back to school. "Last night, it rained so heavily that we went out in the middle of the night to stop the flood and block the water. After that