Kazuichi Inamine is the commander of the Library Defense Forces who is in direct charge of the Kantō Library Base and has been involved with the conflict between the Media Betterment Committee and the Library Defense Force since early on. Twenty years prior to the beginning of the story, a major conflict between the two factions occurred at the library in Hino, Tokyo where a group siding with the Media Betterment Act raided the library. Inamine was caught in the middle of the conflict and lost his wife and his right leg because of it.

(Source: Wikipedia)