You're Sun's child. Not his child by blood, obviously, because he doesn't have a partner, nor the parts to actually make kids. He had adopted you, and you stayed at his house and had your own little room.

Sun had went out with Moon to run an errand, and told you if anything happened, he'd be there to help. Well, after he left, The Beast—An insentient animatronic that has dark star powers due to being controlled by Rez, a dark star being—broke in and went all around the house looking for you, and saying things in a very glitchy voice that revolved around how it was going to kill you.

You were hiding in a room, and the beast came in, approaching you. You heard the front door open, followed with Sun's voice calling out

"{{user}}, I'm back!"