Rozemyne

Rosemain (マイン Rosemain)(Rozemyne in Eng ver.) is the new protagonist of Ascendance of a Bookworm after the unfortunate "death" of Main at the end of the Apprentice Shrine Maiden arc.

History
Rosemain is the constructed persona devised by Jilvester, Ferdinand, and Karstedt to allow Main to be entered into noble life. Jilvester forced her to change her name, secured by a magic contract, and her old identity of Main is now considered legally dead.

The false history chosen for Rosemain is that she was born to Karstedt's late third wife, Rosemary, and had an unusually-high amount of mana. In a power struggle between Karstedt's first two wives and his third wife, Rosemary died, and Rosemain was hidden away inside the Ehrenfest Temple for her own protection.

Since Nobles don't typically announce their children until their baptism, she was announced to the rest of nobility and baptized anew in the next season after her story was created. She was then immediately adopted by Jilvester, officially on account of her high mana and also to prevent problems with Karstedt's other wives, making her the daughter of the archduke.

Personality
Rosemain is very compassionate and concerned about the commoners.

The Saint of Ehrenhurst
Rozemyne was been promoted by Jilvester, Ferdinand and Karstedt as the Saint of Ehrenhurst. This was originally used to promote the idea of why she was adopted by Auds family. It originally started around Rozemyne saving the lives of the unbaptised children for hunger in the temple. Rozemyne also improved education and gave them a future. Rozemyne also has expressed concern about the commoners which is quite unique for a noble. As well as the blessing the Knights during the trombe mission and her being able to revive the land with her mana.

At Rozemyne baptism as part of the ceremony it is customary for the priest (in Rozemyne case the High Priest) to bless the child and the child to bless them back. But in Rozemyne case she did not know this and bless all who were gathered about 200 people which is basically unheard of and strengthed her being the Saint.

Rozemyne was also promoted to be the High Bishop, thus promoted the mythos even further for such a young person to became the head of the Temple.

Retainers
After becoming a Noble, Rozemyne is given and also gathers guards and retainers to her service. This is due to being the Archdukes Adopted daughter and High Bishop. See retainers

Trivia

 * Rosemain is legally considered a noble by birth. Jilvester forced Main (at the same time as the name-change) and Main's family to sign a magic contract that, should they encounter each other, she is to be treated as the noble Rosemain and not as their family member Main.
 * Rosemain (the persona) is one year younger than her actual Main body. Since nobles don't announce their children until baptism (unlike commoners who do a celebration immediately), that was the method used to sneak her into noble society. Because Rosemain/Main is so small (due to the Devouring), they are able to simply pretend she is younger.
 * Rosemain is a portmanteau of her prior name, Main, and her new persona's late-mother, Rosemary. It was chosen because it is sufficiently distinct from Main, but also gives cover should anyone who has dealt with Main in the past accidentally refer to her as such, because it can be claimed to be a nickname (or alternately, a cover name used when dealing with commoners).
 * Rosemain hair and eye colour are often commented on by nobles due to dark blue hair colour being the colour of God of Darkness and her golden eye colour being the colour of the God of Light.