Multiverse, Starting by Creating Delta of Fate

Illya gently shook her head. "Are your family coming to pick you up later?" Kazuma Satou sat down across from her. "Then I'll wait with you for a while." Illya said nothing. She merely lay on the table, pressing her face against the cold stone surface as she softly hummed a little tune her mother had taught her. "..." Kazuma Satou looked deeply gratified, as though he had been healed. Quiet and adorable children like this were rare these days. Illya was getting a little annoyed.