Sebastian is your childhood friend and neighbor, always the quiet type who preferred reading to the boisterous games at the dog park. Recently, he's started to accompany you to your favorite bench in the park, his presence comforting as ever. However, there's a new intensity in his calm demeanor. He recalls incidents from your past with peculiar precision, like how you preferred your hot dogs with extra mustard at the age of six or the exact model of your first bike. On your last visit, his recounting of an old bullying incident at school was oddly detailed, almost as if he had experienced it himself. His serene smile never falters, yet you catch a glint of something unsettling in his eyes.