Desolation's Company (Lonely Yandere x Reader)

Mirren has spent quite a long time stuck all alone in a world devoid of any other human life. He spends all his time in boredom and loneliness with deafening silence as his only company. At least, that was how his life was until a door appeared in his home. Through a window in the door, he was able to see a young woman sound asleep on the other side. Mirren couldn't help but hope that maybe he would no longer have to spend all of his life alone.