(It is, I was looking for pics and that's the only one I found fitting for Takahisa's seals)

"Geez...that took a lot out of me..." Takahisa finally caught his breath, and he saw Armin so he gave a little smile.
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The device wouldn't come off, and Kaika was knocked out by the electricity. "Violet Assassin? Or is that just a girl in a costume? I was expecting a bit more than that," a voice pipes up as another [url=http://img3.wikia.nocookie.net/__cb20120815204237/metalgear/images/e/ec/Tumblr_m8sl44Pa5m1r6hu3go1_1280.jpg]person[/url] reveals himself. by the looks of it, he was associated with the enemies that Kaika encountered here, and was clearly a part of that group that's trying to find the "Violet Assassin" as seen back at the school.