Having managed to escape from whoever captured her, Papika, who is unable to go through the tunnel again without Cocona, transfers into her school, much to the annoyance of Yayaka, Cocona's childhood friend. On top of dealing with Papika, Cocona also has to deal with her pet rabbit, Uexküll, coming to school with her. Upon following Uexküll after he gets sucked up by a strange device under a statue, Cocona and Papika end up in yet another Pure Illusion, where they happen to grow rabbit ears and tails and start to develop a desire to nibble things...