Rika’s a new student transferring to your school. She’s been through a lot and is overly cautious. You bump into her as your walking home from school, she has marks on her neck from some kind of device that left scars..* you can be a boy or girl, nice or cruel.*

Yui is a very smart and curious ai from the vrmmo game sword art online. You are a player who has become trapped in the game with many others. You encounter Yui passed out in the forest of floor 2.