Ortwin

Ortwin (オルトヴィーン, Orutoviin) is an archduke candidate from Drewanchel, who currently attends the Royal Academy. He is the younger brother of Adolphine.

According to his classmate Wilfried, Ortwin is “quite intelligent.”

Despite being heavily pushed to become the next Aub Drewanchel, Ortwin himself would much rather leave the title to his half-siblings and dedicate his life to research. He he finds it very difficult to disobey his sister and thus works diligently on achieving the excellence expected of the next archduke.

Although Ortwin is in the same year as Rozemyne, they rarely interact because of how quickly she passes her classes. He is better acquainted with Wilfried.

Once Rozemyne returns to the Royal Academy, Ehrenfest sends out invitations to all duchies for a final tea party before the Interduchy Tournament. Due to a limit on the number of people they can accommodate, they ask that each duchy only send one person (and their retainers) to attend. Ortwin is eager to go to the tea party. However, his sister Adolphine claims the spot for herself.

After the tea party, Adolphine hands Ortwin a small jar which contains a sample of a substance called Rinsham, which makes a person's hair smooth and lusterous when washed with it. She asks him to analyze it over the rest of the year and come up with their own version of it before the next winter. While Ortwin is not interested in the beauty aspect of it, he is intrigued for scientific reasons. Over the course of the year, he is partially successful in creating a derivate of Rinsham, but isn't able to reach the same level of quality as the original. While his product does much the same as original Rinsham, it does not make the hair quite as glossy and silky as the original. It is also slightly unpleasant to the scalp when used, according to Adolphine.

In the following term at the Royal Academy, Ortwin and Wilfried share a very enthusiastic greeting and promise each other to meet and play gewinnen again, hinting that they have formed a friendship while Rozemyne was absent from the Royal Academy the previous year.

When Adolphine borrowed books from Rozemyne, Ortwin also read them. He quite enjoyed them, but is getting rather tired of only ever getting to read the romance stories his sister borrows. At a tea party with Rozemyne, however, the Ehrenfest archduke candidate promised she would lend Ortwin a book with knight's stories through Wilfried.

In his third year at the Royal Academy, Ortwin is able to pass the theology exam on the first day, allowing him to participate in the practical lesson divine protection acquisition on the same day in the afternoon. The majority of students gathered there are from Ehrenfest and Drewanchel, with just a small scattering of people from other duchies present. Soon after, the lesson starts, and the prayer for the ritual is presented. A very short time later, Rozemyne states that she has finished memorizing the prayer. Even Professor Hirschur finds it hard to believe that she could have managed that so quickly, to which Rozemyne replies that she is already familiar with the prayer, since it is just a slight variation of one she is familiar with that she regularly uses in her capacity as the High Bishop. Wilfried remarks that it is also very similar to the prayer used to supply the Foundation Magic with mana. This surprises Ortwin, since whenever he participated in the charging of his duchy's Foundation, they just poured mana into it like they would with any other magic tool, and he points this out. Before this even can become a debate, Professor Hirschur cuts them short and says that any such discussion can wait until after class. With Rozemyne already being so familiar with the prayer, she almost immediately states that she is ready to perform the ritual. Like in many other practical lessons, rather than going by status and rank, the students who finish memorizing the prayer first also perform the ritual first and thus Hirschur takes Rozemyne to the shrine, while Professor Gundolf keeps watch over the other students.


 * Ortwin had an unnamed cameo during the court etiquette class in Part 4 Volume 1, in which he was admonished for almost exclusively talking about only himself.
 * Ortwin's Gewinnen figures, which were a gift from his father, are coloured red, like his hair and eyes.
 * Ortwin is consistently beaten by his sister Adolphine in gewinnen. But he is able to beat his friend Wilfried most of the time. He considers Daividh to be an easy mark in the game. He also has not lost a single match against Konradin, but strongly suspects that Konradin let him win to not stand out due to their respective statuses, their duchies' ranks, and being the son of a third wife.