Unison Devices
The Unison Device (融合型デバイス, ユニゾンデバイス, Yūgōgata Debaisu, Yunizon Debaisu?) is the most sophisticated design of device in the Belka magic system that takes the Intelligent Device idea to the extreme.
The device is given a body and free will, and the power to "unite" with its user (this act of uniting called Unison Mode), thereby granting extensive control and management of his or her abilities and power. However, due to the incompatibility with many practitioners, and incidents where the device took control of its user, Unison Devices never became a viable product.
