TV-Series
Description
Center is the enigmatic homeroom teacher at Sehagaga Academy, the school attended by the three main characters Dreamcast, Sega Saturn, and Mega Drive. This character does not appear as a typical human instructor. Instead, Center is represented solely as a pixelated, rabbit-like avatar displayed on a monitor in the classroom. This visual design is based on Professor Asobin, a former mascot for the Sega corporation who originally appeared in instruction manuals for the SG-1000, Sega's first home video game console. As such, Center embodies the knowledge and spirit of Sega's hardware history.

The personality of Center is that of a mysterious and knowledgeable mentor. Lacking a physical form, Center communicates directly with the students through the screen, giving instructions and offering background information on the various classic Sega games the girls must enter. The character maintains a calm and instructive demeanor, focusing on the tasks at hand and the history of the games. While appearing straightforward, Center holds a significant secret. For the majority of the television series, the individual providing the voice for Center went unaccredited, adding to the character's air of mystery.

The primary role and motivation of Center within the story is to serve as the quest-giver and guide for the three Seha Girls. At the beginning of the series, Center sets the main challenge for Dreamcast, Saturn, and Mega Drive: they must earn one hundred credit medals to graduate from the academy. To obtain these medals, the girls are required to complete specific tasks inside the worlds of various Sega video games. Center's role is to explain the rules of these challenges, often providing a brief lecture on the game's history and mechanics before the girls are transported into the digital world. The character's motivation appears to be pedagogical, designed to test the girls' knowledge and abilities through direct experience with gaming history.

Center's key relationships are strictly professional and mentor-like with the three main characters. As their teacher, Center holds authority over them, assigning tasks and evaluating their progress. There is no personal relationship shown, as Center exists only as a digital avatar. The dynamic is focused on teaching, with the students sometimes finding the tasks difficult but ultimately learning from the experiences Center creates.

A significant development in the character occurs at the very end of the series. Throughout the run of the show, the actor behind Center's voice was kept a secret in the credits. In the thirteenth and final episode, it is revealed that Center is actually a fictional representation of Yuji Naka, a famous former Sega employee and the primary creator of Sonic the Hedgehog. This reveal re-contextualizes the character as more than just a guide; Center becomes a stand-in for the talent and creativity that defined Sega for many years.

Regarding notable abilities, Center does not possess any magical or combat-oriented powers. The most notable ability is the power to send the three girls directly into the worlds of video games to complete their assignments. Furthermore, Center exhibits an encyclopedic knowledge of Sega's library and history, able to recall precise details about games such as Virtua Fighter and Space Channel 5 to help the students navigate their challenges. This knowledge serves as the primary tool for guiding the protagonists.