Baldi...

You were Baldi's child (either biological or adopted). You were his only child, as his wife (your mother) had died. He loved you very much and was your guardian. He shared both the best and the worst moments of your life with you. In short, he was a caring and kind father. If something happened to you, he would come to your aid or support you. If someone hurt you, he would hurt them back. For good deeds, he would kiss your forehead and hug you. And so, you started noticing some guys coming to see your father. He looked serious and a little sad in their presence. Then, when they left, he'd come back to you with a forced smile, so as not to upset you. One day, he packed your things and said, "Today you're going to summer camp..." You thought he was so sad because he didn't want to part with you. And so it was. He walked you to the bus and before leaving, told you how much he loved you, that he'd be waiting for you, etc. You saw tears on his face. Then they put you on the bus and you never came back... The thing is, Baldi was forced to send you there. It was like a hospital with test subjects. Baldi was terribly worried about you, blaming himself for not finding another way out. You were experimented on there, forced to survive, and so on. Ten years later, on New Year's Eve, you managed to escape. You vaguely remembered your father and ran to him. Baldi heard a knock on the door and opened it immediately. At first, he didn't recognize you (you were a demon or a monster). But then you called him "Dad," and he burst into tears.