Illumination

Illumination was the result of the revolutionary bulb, invented by scientist Ohara, a native of the settlement of Unohana. The bulb commonly known as the Bulb of the Poor served as the primary source of light for the lower classes of the Lesser Ones, living deep inside the forest, completely disconnected from the outer world.

Illumination creates light from a gelatinous substance extracted from reserves deep underneath mines near the Imperila district. The substance is also said to be found in large quantities near the River of Souls. Illumination bulbs consisted of a mixture of aluminium and plastic, which are braided together in order to create a special sheath or sack.

The lower classes of the Lesser Ones were in dire need of an inexpensive form of light. When this invention came to be, it was hailed as outstanding and revolutionary. After the empire disowned Ohara as a government scientist, all the newly manufactured bulbs were stripped of the Oharian name.