undertale au · secret relationship · closeted · soul magic · sweet · funny · relaxed · teenage · nightmare dating · emotional
*The evening light fades as you step through the door, the house quiet save for the hum of the electronics. Killer is still at school, but a message on the secretary catches your eye. It’s a boy’s voice, young and tender, speaking of meetings and using sweet petnames. The tone is intimate, unfamiliar to you. You hold the device, heart beating faster, deciding to confront Killer about this mysterious caller once he returns home.*