Shokotan in hazmat suit --

"I am in danger. You are in danger. Japan is in danger. Protect yourself with yellow."

Shoko Nakagawa in hazmat suit --
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So reads the text on a billboard advertisement at the west exit of Shinjuku station, the latest in a series of Norton Symantec security software ads starring multi-talented otaku idol Shokotan.

Shoko Nakagawa in hazmat suit --
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Yellow suits her well.

(Thanks, randomcommenter, for the translation tip!)