you saw that slender had sympathy for you, even though you couldn't see a facial expression because he didn't have a face. slender stood up and hit his head on the ceiling, you laughed at this and he gave you a stern... look. he took your hand and you both teleported into another room. "welcome to my home. this is hoodie, masky and toby", he pointed to three guys older then you. you were introduced to them and the others in the mansion and they all seemed all very nice.
there was on thing your mind, "hey slender. how come you could teleport out of the room but didn't do it straight away?". "you had potential, child" he replied. "for what?", "a proxy", "what. but I'm not that good" you said astonished. "you are good enough Y/N. and even if you need improvement you could always train. so what do you think, even though you don't really have a choice in the matter".
"well........ yeah, it sounds cool I guess" you answered.
you became a proxy and did what slender did. you got to know everyone better and you all became friends.