Prima Doll: Fuyuzora Hanabi/Sekka Mon'you is the first volume of a kinetic novel series based on the multimedia project Prima Doll that adapts the Haizakura and Karasuba prequel episode originally serialized for the official website.

Fuyuzora Hanabi:

Shortly before the opening of Kuronekotei.

The Republic of Altaria, where the New Year has arrived. In this country where the Imperial Army is stationed, Lilia is being hunted down. The person who saved her from her predicament was an autonomous doll with a relaxed atmosphere. Her name is Haizakura. Will she help Lilia with her wish to cross over to Lobelia?

Sekka Monyou:

Karasuba wakes up from maintenance. There, on a small island that is a resort for the imperial army, she is given a new role by the dollmaker Nagi Touma who fixed her up. It is a job like a maid doll, and she spends her days unwillingly. As the spring thaw approaches, the footsteps of war gradually approach.