These are the AI children that Yaruka and Jonathan found. The girl is Annie and the boy is Luke. They are both five years old, and love to play hide and seek. They call Yaruka and Jonathan, "Mommy and Daddy" even though they are not dating. Yaruka and Kirito found a way to bring them to the real world.
The GGO AI's:

Child IRL:

Grown up IRL: