It has the ability to make lines of connections that allow the user to either absorb or transfer power from opponents, allies, and objects. In the anime version, Saji is able to form Absorption Line on both his arms and legs. It resembles a small lizard (more specifically, a chameleon) with a deformed face that appears on the user's hand. His Balance Breaker is the result of the combination of the four Vritra Sacred Gears and the fusion of Saji and Vritra.Ībsorption Line ( 黒い龍脈 ( アブソーブション・ライン ), Absōpushon Rain), also known as the Black Dragon's Pulse, is the Sacred Gear residing in Saji.

Saji was able to reach Balance Breaker, Malebolge Vritra Promotion in Volume 17. This gives Saji the new ability ' Vritra Promotion'.

In Volume 7, Saji's abilities were upgraded when the Grigori, on the order of Azazel, implanted the other three types of Vritra Sacred Gears into Saji, thus completely awakening a part of Vritra's consciousness. In Volume 6, Saji reveals that a jewel appeared in his hand and gained many black snake-like marks after absorbing Issei's blood during their master's Rating Game in Volume 5. In Volume 3, Saji reveals that he owns one of Vritra's Sacred Gears, Absorption Line, which contains part of Vritra's soul in it.

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