Jinjūreishin

The Jinjūreishin (人獣霊芯, Human Beast Soul Nexus) is a signature technique of the Jūyōki Clan.

Overview
Based on the principles of Jinchūriki, the Jinjūreishin allows the user to imprint the souls of animals into their own soul, enabling them to partially or fully transform into the animal and utilize their abilities to enhance their own.

Enhancement
While imprinting the souls of animals into their own soul is quite common, the souls of insects is also utilized. Imprinting the souls of humans into themselves is strictly forbidden within the clan due to [---]. Despite this, there have been several occasions in the past where this was done before the practice to deemed forbidden.