The red-haired Killer Princess, the candidate of the original canon, the bearer of the strongest Demon King bloodline... Rias possessed many halos—but in fact, as a recluse of the Secret Society, she was merely a newcomer who had just been promoted from record keeper.
In short, she was a rookie in the Dimensional Gap.
As a newcomer in the workplace, wanting to make a name for herself was only natural... and Miss Rias was no exception.
Originally, as a newly promoted recluse, she should not have been able to take over the task of recording the history of a sub-world so quickly... At the very least, she should have studied internally within the Secret Society for some time, then worked alongside an experienced recluse for a while before being formally appointed and sent out on her own.
This time, however, it was a special accident.
First, the recluse originally responsible for Sub-world 003 had died unexpectedly. At present, Rias was temporarily the only active newcomer in the Secret Society... The Secret Society had not promoted a newcomer in a very long time.
Second, Rias's background was far from simple. Among her ancestors was someone who had already become a recluse, and that person held a fairly high position within the Secret Society.
Although Rias's promotion this time did seem to involve pulling strings, Rias herself truly was qualified for promotion. With the Secret Society's higher-ups handling the matter, naturally no idle gossip arose... and so the matter was settled.
However, since Rias was merely a new (rookie)comer (bird), she had only been assigned Sub-world 003—the normal recluses were each responsible for the histories of ten to twenty sub-worlds, so this assignment had the faint air of a preliminary assessment.
She had protested before, but her protest had been ineffective.
—Sub-world