This appears to be Japanese with one word possibly spelled incorrectly. There is no such word spelled mousi but there is moushi
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It means "I'm getting bored, but I like to use IPmessenger"
According to Wikipedia, Seki Takakazu, 1642 - December 5, 1708), also known as Seki Kōwa, was a Japanese mathematician in the Edo period. Seki laid foundations for the subsequent development of Japanese mathematics known as "wasan"; he has been described as Japan's "Newton". He created a new algebraic notation system and worked on infinitesimal calculus and Diophantine equations.