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"An esoteric substance or compound that reacts to gravity?" Julian frowned. "Such things do exist but… Why on Gaia could you poss-"
"They exist?!" Rui's grin was wide.
Julian frowned as he furrowed his eyebrows, taking a good look at his younger brother. Usually, he possessed quite a composed temperament. Even at an extremely young age, Rui demonstrated the serene patience that one would really only see in the elderly.
The only exceptions were when a matter was related to Martial Art, then for some reason, he became as excited as a child.
Julian had no doubt that whatever this was, this had to be related to his Martial Art. Not even all the wealth in the world could shake Rui's composure as much as his passion for Martial Art did.