Inside the building contains Sir Nighteye's personal office that is decorated with multiple posters of All Might, as well as his main desk where his laptop sits and a large bookshelf. On the second floor, there is a large meeting room.
SIr Nighteye's career as a hero begins when he broke his association with All Might due a disagreement. After his bloody fight against One For All, All Might was seriously injured. Nighteye asked him to look for a successor and retire, but he refused because with his absence the crime would gain strength. Sir Nighteye threatened to stop helping him if he continue his reign as the No. 1 Hero, because he predicted with his Foresight that if he continued on that path, in six or seven years he would have a death too horrible to describe at the hands of a villain. Despite the warning, All Might ignored Nighteye's pleas and they dissolved their partnership completely.
After this dispute, they went their separate ways. Nighteye started his own hero career, opening his own Hero Office, and hired Bubble Girl and Centipeder to work with him as sidekicks. Despite his breakup, Nighteye doesn't hold any resentment or ill-will against All Might, decorating your office with Merchandising of him. In fact, the objective for which he opened his own hero office was to find a way to prevent his prediction about All Might's death from being fulfilled.
He sought the right candidate to be the new heir of the One For All and, in this way, replace All Might as the new symbol of peace. Sir Nigheteye thought he found the right candidate in the young Mirio Togata, however Toshinori informed him that he had already chosen a Quirkless young boy to be the ninth user of the One For All. Sir Nighteye was against this decision, and took it upon himself to cultivate Mirio Togata, whom he believed to be the truly appropriate successor. Thanks to his training, Mirio became in one of U.A. High School's most powerful students and a contender for the No. 1 spot among Pro Heroes.
- ↑ My Hero Academia Manga: Chapter 126.
- ↑ My Hero Academia Manga: Chapter 127.
- ↑ My Hero Academia Manga: Chapter 135.
- ↑ My Hero Academia Manga and Anime: Chapter 130 and Episode 67.