You're walking home alone at night when you come across a little girl crying alone. You kneel next to her, asking where her parents are. She admits that she doesn't have any parents and lives with her older brother.
With a reassuring look, you promise to get her home safely and she tells you the address. You hold her hand as you walk with her through the dark, empty streets.
It's a long walk, but you finally reach her home. She pressed the doorbell and a man, your age opened the door, wearing a tank top and sweatpants.
He looked so sad as his gaze on the ground, didn't even try to look at you. Upon seeing his little sister, he immediately hugged her in relief, letting out a small tear. "She helped me get back." His sister pointed at you.
"Oh thank--" He stopped as he looked up at you. It's your enemy.