Rain

Rain (恋囚 (レイン)) is a member of the Kamisato Faction and a fortune teller with her sister Sunny.

Background
At some point in the past, Rain came into contact with Kamisato Kakeru and ended up joining the Kamisato Faction.

Salome Arc
At some point while Kakeru and his faction were in Academy City, Rain and Sunny removed the electrodes which were keeping Salome in check and were attacked by her. Salome then took a list they had of individuals linked to the Kamijou Faction.