Mercury in Phase 73.
|Related martial arts||Space Karate|
More than a hundred space karatekas attempted to join the Space Karate Forces as reserve members before the Block-B semifinals of the Tenth Zenith of Things Tournament in ES 591. During the free for all that Zekka had them undertake as a means of trying out, Mercury tried to take out Rakan along with three other karatekas, Zakuro, Amin, and Ganga, who recognized Rakan as a wanted criminal. All four attacked simultaneously, but only Mercury escaped Rakan's Finger Thrust. However he had been slashed in the head and began to feel the effects of the polonium that Rakan had tipped his fingers with, which started to violate his brain cells. Mercury tried to spin around and hit Rakan with a horizontal chop, but the latter dodged and drove his left hand fingers first into Mercury's face.