Useful Spider

Useful Spider (営巣部隊(ユースフルスパイダー)) is an unit from Academy City's Disaster Recovery Committee, tasked with rebuilding the city following a major crisis.

Sphere
The Sphere (スフィア) is an information device distributed by Useful Spider.

During the 48 Hours to Restore Order, Useful Spider supplied a Sphere to the shelters in the city, including Trial (裁判) (School District 7), Academy (学会) (School District 5), Charity (博愛), Prison (監獄), Health (健康), Journalism (報道), Show Business (芸能) (District 7), Hospital (District 7) and Esper.

Breath of Blessing
The Breath of Blessing (ブレスオブブレッシング) is a giant fan used by Useful Spider for suppression and clearing purposes.

The fans were originally designed to designed to artificially alter wind direction and redirect toxic smoke away from densely populated areas in the event of a dangerous chemical fire in one of the city's laboratories, however this nonlethal firefighting usage was largely an excuse for paperwork.

48 Hours to Restore Order Arc
On December 9th, following the end of the heat wave and the destruction of the Elements, Useful Spider were mobilized and distributed Spheres to the various shelters across the city, declaring the start of 48 Hours to Restore Order (秩序回復の四八時間). Through the manipulations of Kihara Yuiitsu and the Kamisato Faction, they also declared Kamijou Touma and Karasuma Fran as wanted figures linked to the disaster. The Spheres were used by the faction to manipulate the actions of the shelters' residents.