A strange message showing infinity symbol delivered to Rei’s new phone. As she read the message, a little boy comes out from the phone. He’s Reuel, the king of infinity. He’s looking for King Marker, a person who accompanies the king and has to judge him. King Marker can help Reuel to break his spell.
Reuel says that the chosen King marker is Rei. But, what does she know about breaking magic spell?